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How to tap into rearview mirror power for radar detector power?
Hi All,
I have a wiretap direct wiring harness from blendmount for my radar detector. I was able to dissasemble the rearview mirror housing assembly today without destroying anything, however, I was unable to figure out which pins to use for the wiring harness. Do any of you have any schematics or diagrams showing known pins and the ground? I'm sure some of you have done this. Thanks! |
Im not into radar detectors but would like to know if I could power a dash cam with the same mirror connectors that you might use for a dash cam. Thanks.
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Watching. We have a 2019 e-Hybrid with heated windshield and a Uniden R7 radar detector. There's only a small area on either side of the upper console, immediately below the windshield header, where the detector works, so it does make sense to hard-wire it. Another option is to run the wire up the A-pillars and across the header, but it might be harder to hide nicely.
I'm also waiting for a V1 G2, which is a little more compact than the R7, and can be run dark at all times when using JBV1 on my phone. The power connector is the same for both detectors. |
TTT
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red to blue , black to brown on passenger side
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Originally Posted by David Mackintosh
(Post 16933478)
I'm also waiting for a V1 G2, which is a little more compact than the R7, and can be run dark at all times when using JBV1 on my phone. The power connector is the same for both detectors.
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Originally Posted by 8378hjlafdljfads
(Post 16919642)
Hi All,
I have a wiretap direct wiring harness from blendmount for my radar detector. I was able to dissasemble the rearview mirror housing assembly today without destroying anything, however, I was unable to figure out which pins to use for the wiring harness. Do any of you have any schematics or diagrams showing known pins and the ground? I'm sure some of you have done this. Thanks! |
Appreciate the replies but they do not apply to the 2019+ MY Cayenne...
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So I took the plunge and hard wired my V1 Gen 2 using a mirror tap this weekend overall it was fairly easy to do but I always get a little nervous as the force it take to remove some trim pieces in this car. The guides posted above in the thread didn't help that much except that tap black to brown wire and look for a blue wire. With that being said below are my observations and what worked for me:
1: You need a set of plastic trim removal tool 2: Get a mirror tap kit that has different tap sizes (I ended up using two different sizes). I used the Radar Mount brand from Amazon (PN#: 4005201V for the V1) There are a few of these for the V1, not all have different connection sizes. This was 1/2 the price of the other brand, thought I would give it a shot to save $20 and it worked. 3: You don't need to remove the dome light. Don't even try to do that via the video link in this thread, it won't come out of the clips, I felt too much force was being applied. 4: Start by removing the plastic trim right above the mirror, the one that houses the Passenger Airbag Light (see first pic below) a: It took some force to remove. Just use a trim tool and work from the left side against the windshield over to the right. There are a lot of little bits that help keep it attached. You will have to slide it forward to the windshield to drop it down, at times I thought I broke it (maybe I actually did) and it hangs on by a red belt so it will just dangle once off. b: You will need to unplug the Passenger Airbag Light connection to gain enough room. Just make sure you put that back in before you start the car otherwise it will through an airbag error that is easily rectified once you plug it back in and restart the car. 5: Remove the next piece of trim right behind the mirror (see second pic below).a: This one is also a pain to remove. There is a rubber ring attachment that holds the right side onto the car inside the trim piece. I don't have a photo of it but it is attached a plastic piece and I couldn't pop the entire bit off so I had to stretch the rubber and just remove that. 6: Once these pieces are off you will clearly see the connector smack dab in the middle with wires going up (see third pic)b: I had a real hard time stretching this back on during reassembly, it started to tear so I stopped since the entire piece seemed very solid once it all snapped back together. I may order a new one but in 40 miles of driving it does not move or make a noise. a: I found it easiest to unplug the connector and work on it in front of the rearview mirror 7: Slip the RJ cable into the bottom mirror trim piece that was not removed, there is a rubber bit between the plastic and the windshield so the cable fits perfectly at the bottom (see second pic below)b: There is a BROWN wire, tap this with the black connector (see fourth pic below), I tapped into it with the thicker of the tap connections as the thinner one kept falling out. I also tapped it on the windshield side of the wire. (see fifth pic below) c: There is a RED with BLUE STRIPE wire right next to the brown wire that takes the red connector (see fourth pic below). I used the thinner tap here as it would not take the larger tap I had, again tapped it on the windshield side of the wire. (see fifth pic below) 8: Reassemble in reverse order and you are good to go. I hope this makes sense and is helpful to someone! https://cimg7.ibsrv.net/gimg/rennlis...0b0e1bfd49.jpg https://cimg6.ibsrv.net/gimg/rennlis...03b7ebb626.jpg https://cimg1.ibsrv.net/gimg/rennlis...3c075b2ece.jpg https://cimg2.ibsrv.net/gimg/rennlis...365e704f63.jpg https://cimg6.ibsrv.net/gimg/rennlis...8956cf62dc.jpg |
Thanks for posting. Just to confirm the red with blue stripe is switched 12V?
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Originally Posted by A4EP
(Post 16974537)
So I took the plunge and hard wired my V1 Gen 2 using a mirror tap this weekend...
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Originally Posted by OCNYPORSCHE
(Post 16974855)
Thanks for posting. Just to confirm the red with blue stripe is switched 12V?
I don’t have a voltmeter so I just used my wife’s V1 Gen1 to test before plugging in mine. Figured if it was going to nuke a detector make it my wife’s since she never drives fast anyway ;-) |
Originally Posted by David Mackintosh
(Post 16974968)
Very helpful, thank you! I've been using my V1 G2 with the coiled wire for a few days. I'm still not sure I want to dismantle the overhead console as you did, I'm considering just running a straight wire across the header, down the A-pillar, and to a switched 12V wire behind the dash,. I'm assuming the wire could all be tucked in, but I don't have one yet. Any thoughts?
Dealer said they had seen that occur before with those Progressive Insurance driving monitors that plug into the port. Guess the Savvy was sending some signals to the car even when when the car was turned off making the car think someone was trying to steal it through the OBDII. I got tired of always unplugging the V1 when parked or forgetting and the alarm going off in front of Costco or my office. |
Bless you for posting this thank you!
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Originally Posted by A4EP
(Post 16974991)
You shouldn’t have a problem running a flat cable. I had been running mine with the Savvy run down the drivers A-pillar and plugged into the Savvy in the OBDII port but kept having my car alarm go off randomly while parked.
You must not have a heated windshield. My Cayenne does and I have to mount any RD as high as possible, immediately adjacent to either side the console housing. It's stealthy up there, but I also need to use a remote display (my phone). Even with the visor up, the V1 up (signal ahead) arrow is blocked. Visor down you can't see the RD at all, of course. |
The usual way to approach mirror tap is to find where the mirror is connected to the harness, and find a switched 12v there using multimeter. Just like A4EP did!
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Originally Posted by A4EP
(Post 16974537)
So I took the plunge and hard wired my V1 Gen 2 using a mirror tap this weekend overall it was fairly easy to do but I always get a little nervous as the force it take to remove some trim pieces in this car. The guides posted above in the thread didn't help that much except that tap black to brown wire and look for a blue wire. With that being said below are my observations and what worked for me:
1: You need a set of plastic trim removal tool 2: Get a mirror tap kit that has different tap sizes (I ended up using two different sizes). I used the Radar Mount brand from Amazon (PN#: 4005201V for the V1) There are a few of these for the V1, not all have different connection sizes. This was 1/2 the price of the other brand, thought I would give it a shot to save $20 and it worked. 3: You don't need to remove the dome light. Don't even try to do that via the video link in this thread, it won't come out of the clips, I felt too much force was being applied. 4: Start by removing the plastic trim right above the mirror, the one that houses the Passenger Airbag Light (see first pic below) a: It took some force to remove. Just use a trim tool and work from the left side against the windshield over to the right. There are a lot of little bits that help keep it attached. You will have to slide it forward to the windshield to drop it down, at times I thought I broke it (maybe I actually did) and it hangs on by a red belt so it will just dangle once off. b: You will need to unplug the Passenger Airbag Light connection to gain enough room. Just make sure you put that back in before you start the car otherwise it will through an airbag error that is easily rectified once you plug it back in and restart the car. 5: Remove the next piece of trim right behind the mirror (see second pic below).a: This one is also a pain to remove. There is a rubber ring attachment that holds the right side onto the car inside the trim piece. I don't have a photo of it but it is attached a plastic piece and I couldn't pop the entire bit off so I had to stretch the rubber and just remove that. 6: Once these pieces are off you will clearly see the connector smack dab in the middle with wires going up (see third pic)b: I had a real hard time stretching this back on during reassembly, it started to tear so I stopped since the entire piece seemed very solid once it all snapped back together. I may order a new one but in 40 miles of driving it does not move or make a noise. a: I found it easiest to unplug the connector and work on it in front of the rearview mirror 7: Slip the RJ cable into the bottom mirror trim piece that was not removed, there is a rubber bit between the plastic and the windshield so the cable fits perfectly at the bottom (see second pic below)b: There is a BROWN wire, tap this with the black connector (see fourth pic below), I tapped into it with the thicker of the tap connections as the thinner one kept falling out. I also tapped it on the windshield side of the wire. (see fifth pic below) c: There is a RED with BLUE STRIPE wire right next to the brown wire that takes the red connector (see fourth pic below). I used the thinner tap here as it would not take the larger tap I had, again tapped it on the windshield side of the wire. (see fifth pic below) 8: Reassemble in reverse order and you are good to go. I hope this makes sense and is helpful to someone! https://cimg7.ibsrv.net/gimg/rennlis...0b0e1bfd49.jpg https://cimg6.ibsrv.net/gimg/rennlis...03b7ebb626.jpg https://cimg1.ibsrv.net/gimg/rennlis...3c075b2ece.jpg https://cimg2.ibsrv.net/gimg/rennlis...365e704f63.jpg https://cimg6.ibsrv.net/gimg/rennlis...8956cf62dc.jpg IMPORTANT: They sell a "pre wired" mirrortap product for the Cayenne. It has tap prongs that are TOO LARGE and will NOT FIT in the mirror wiring connector! Do not buy this product. What you need is their "Universal" mirrortap product, which contains a kit of many different sizes of prongs. I found I needed a small prong for the red wire and a small-medium prong for the brown wire. You will need to experiment a bit to see which fit. Do no attempt to force these in as they may break when trying to take them out for fitment or to apply the heat shrink tubing. |
Ty.
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Mirrortap
Thank you A4EP!!!! . I also followed your instructions with very minor changes...
I had a V1 gen 1 hardwired in my 991 and upgraded to the gen 2... and decided to also hardwire my cayenne 9Y0 I took off the larger plastic piece just like you instructed with the appropriate tools. however I didn’t take off the second smaller piece... I was able to see the location of where the wires would go... I gently pulled the native wires caudally (towards the floor of the car)- and with a pair of slanted tweezers - I was able to slide the wiretaps along the dorsal aspects of each wire... I tested the detector prior closing up... and confirmed..took about 20 mins to install. I don’t mount mine on the mirror, cause it seems too low and in the way.... I keep mine on suction (switch between cars) and up behind alittle tint.... might sacrifice alittle performance... but i like the stealthy look... ps... sorry about the dirty car... it’s actually pollen... everything is blooming.... https://cimg6.ibsrv.net/gimg/rennlis...e3b8f4159.jpeg https://cimg7.ibsrv.net/gimg/rennlis...ad93042fc.jpeg https://cimg8.ibsrv.net/gimg/rennlis...31de89713.jpeg Needing steady hands https://cimg0.ibsrv.net/gimg/rennlis...52aaa8f47.jpeg Needed steady hands https://cimg0.ibsrv.net/gimg/rennlis...def44f62a.jpeg Testing with ignition on https://cimg1.ibsrv.net/gimg/rennlis...6b8375dc8.jpeg Confirmed with ignition off https://cimg2.ibsrv.net/gimg/rennlis...519330c4e.jpeg Will adjust angle... testing the sunvisor... which I rarely use cause of my tint https://cimg4.ibsrv.net/gimg/rennlis...d677066c3.jpeg Pretty stealthy... and tons of pollen https://cimg8.ibsrv.net/gimg/rennlis...3c0bea8e8.jpeg |
Well I've tried pulling the piece off and the front is find but the back near the light I can't figure out where to get it off. Afraid I'm going to break it. Any other ideas?
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Thanks for the tips! I’ve done this many times, on many cars, and this was the easiest by far. Took maybe 15 minutes. Just popped off the cover described above (helpful to have a good array of trim removal tools). Start at the windshield and pry down, then push everything forward. I just pulled out the passenger airbag indicator and removed the pop rivet so that I could completely remove the cover. Used long pickups (tweezers) to position the taps into the respective slots (used the smallest taps). Badabing. Thanks again.
https://cimg6.ibsrv.net/gimg/rennlis...ce96914ca.jpeg https://cimg7.ibsrv.net/gimg/rennlis...e2038c08f.jpeg https://cimg8.ibsrv.net/gimg/rennlis...fe4b81369.jpeg https://cimg9.ibsrv.net/gimg/rennlis...cfb88288e.jpeg |
Great thread, appreciate the detailed instructions @A4EP @bhudda @ninjabones 👍. Going to give it a whirl this afternoon.
One thing I was curious about is running both a RD and dashcam (like a BlackVue) off the mirror tap. Anyone tried that? Not sure if that might cause issues though with power draw. |
Thank you A4EP for posting these directions! On that second trim piece (in your step 5), that rubber ring on the right side of the trim is held on with a pop rivet. Just pull out the pin, and the rivet will drop out. No stretching of the rubber required. This looks to be the same type of pop rivet holding the orange strap to the first trim piece.
Originally Posted by A4EP
(Post 16974537)
5: Remove the next piece of trim right behind the mirror (see second pic below).
a: This one is also a pain to remove. There is a rubber ring attachment that holds the right side onto the car inside the trim piece. I don't have a photo of it but it is attached a plastic piece and I couldn't pop the entire bit off so I had to stretch the rubber and just remove that. b: I had a real hard time stretching this back on during reassembly, it started to tear so I stopped since the entire piece seemed very solid once it all snapped back together. I may order a new one but in 40 miles of driving it does not move or make a noise. |
Going to tackle this shortly. Did anyone document the part numbers for the trim pieces in case I (or another member) were to break one of them?
I assume it's printed on the back of the trim piece, but I could be wrong. |
Originally Posted by INS4NE_B9
(Post 18560902)
Going to tackle this shortly. Did anyone document the part numbers for the trim pieces in case I (or another member) were to break one of them?
I assume it's printed on the back of the trim piece, but I could be wrong. https://www.lllparts.co.uk/catalogs/...1/8/809/809050 https://cimg4.ibsrv.net/gimg/rennlis...5f1e83f21.jpeg |
Originally Posted by Schnave
(Post 18560937)
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Did you ever power them both off of the mirror? I would like to install both, and i am wondering if it worked. Thanks!
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Originally Posted by ctguy
(Post 18328337)
Great thread, appreciate the detailed instructions @A4EP @bhudda @ninjabones 👍. Going to give it a whirl this afternoon.
One thing I was curious about is running both a RD and dashcam (like a BlackVue) off the mirror tap. Anyone tried that? Not sure if that might cause issues though with power draw. |
Originally Posted by A4EP
(Post 16974537)
So I took the plunge and hard wired my V1 Gen 2 using a mirror tap this weekend overall it was fairly easy to do but I always get a little nervous as the force it take to remove some trim pieces in this car. The guides posted above in the thread didn't help that much except that tap black to brown wire and look for a blue wire. With that being said below are my observations and what worked for me:
1: You need a set of plastic trim removal tool 2: Get a mirror tap kit that has different tap sizes (I ended up using two different sizes). I used the Radar Mount brand from Amazon (PN#: 4005201V for the V1) There are a few of these for the V1, not all have different connection sizes. This was 1/2 the price of the other brand, thought I would give it a shot to save $20 and it worked. 3: You don't need to remove the dome light. Don't even try to do that via the video link in this thread, it won't come out of the clips, I felt too much force was being applied. 4: Start by removing the plastic trim right above the mirror, the one that houses the Passenger Airbag Light (see first pic below) a: It took some force to remove. Just use a trim tool and work from the left side against the windshield over to the right. There are a lot of little bits that help keep it attached. You will have to slide it forward to the windshield to drop it down, at times I thought I broke it (maybe I actually did) and it hangs on by a red belt so it will just dangle once off. b: You will need to unplug the Passenger Airbag Light connection to gain enough room. Just make sure you put that back in before you start the car otherwise it will through an airbag error that is easily rectified once you plug it back in and restart the car. 5: Remove the next piece of trim right behind the mirror (see second pic below).a: This one is also a pain to remove. There is a rubber ring attachment that holds the right side onto the car inside the trim piece. I don't have a photo of it but it is attached a plastic piece and I couldn't pop the entire bit off so I had to stretch the rubber and just remove that. 6: Once these pieces are off you will clearly see the connector smack dab in the middle with wires going up (see third pic)b: I had a real hard time stretching this back on during reassembly, it started to tear so I stopped since the entire piece seemed very solid once it all snapped back together. I may order a new one but in 40 miles of driving it does not move or make a noise. a: I found it easiest to unplug the connector and work on it in front of the rearview mirror 7: Slip the RJ cable into the bottom mirror trim piece that was not removed, there is a rubber bit between the plastic and the windshield so the cable fits perfectly at the bottom (see second pic below)b: There is a BROWN wire, tap this with the black connector (see fourth pic below), I tapped into it with the thicker of the tap connections as the thinner one kept falling out. I also tapped it on the windshield side of the wire. (see fifth pic below) c: There is a RED with BLUE STRIPE wire right next to the brown wire that takes the red connector (see fourth pic below). I used the thinner tap here as it would not take the larger tap I had, again tapped it on the windshield side of the wire. (see fifth pic below) 8: Reassemble in reverse order and you are good to go. I hope this makes sense and is helpful to someone! https://cimg7.ibsrv.net/gimg/rennlis...0b0e1bfd49.jpg https://cimg6.ibsrv.net/gimg/rennlis...03b7ebb626.jpg https://cimg1.ibsrv.net/gimg/rennlis...3c075b2ece.jpg https://cimg2.ibsrv.net/gimg/rennlis...365e704f63.jpg https://cimg6.ibsrv.net/gimg/rennlis...8956cf62dc.jpg |
I know this is an older thread but I just want to say be very very careful removing things. My 2016 Cayenne was at the dealership to repair the rear-view mirror because the tension ring had come loose on the back of the mirror, and they cracked the windshield while working on this. Cost them a bucket of money since they had to replace the windshield and put on the 3M ceramic window film on their dime. Of course, while it was there, they figured out that the serpentine belt was due to be replaced given the odometer. Funny that they did not mention that when the Cayenne was there a month earlier for the 60k service. They had me in a loaner for over a week for this - their film guy was on vacation, so the film had to wait until he got back.
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Well the radar detector works! But despite my best efforts, I broke the left clip that holds piece 22 (in the above diagram) to the roof. The part that is likely to break is attached to the car, not the piece itself. Does anyone know how to replace that clip? Surely it's not built into the headliner....
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Not to revive an old thread but I just did this today and mounted my V1G2 on the passenger side cutout for the heated windshield (never optioning this again). I followed the guide pinned above and it works. Bigger black pin and smaller red pin. I trimmed the black pin slightly so it wouldn’t leave any metal exposed when tapped in.
For removing the black plastic piece I used the video below that was done on a 2018 panamera that I hope helps other people who are scared to pull hard…like me. |
Thank You, All!!! Especially A4EP!
Just installed my power tap today. Plastic that snaps together is always a bit scary, but the excellent write-ups and pics (Thousand thank yous to A4EP) helped immensely!!!
It feels GREAT to have that done! https://cimg3.ibsrv.net/gimg/rennlis...eab41d93a7.jpg https://cimg5.ibsrv.net/gimg/rennlis...e1239df1b7.jpg |
Will save for when my 2024 arrives!
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Just did this tonight. Was made super easy by following the directions from @A4EP , thank you!!
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