algiorda

I'm getting ready to install an aftermarket radio (Pioneer Avic 8400) in my 981. I noticed my Pioneer Radio wants Rear Reverse Signal to enable the Backup Camera. Looking at the 981 wiring schematic, there is a BLU/BLK wire on the BCU under the drivers seat which supplies the signal to the Rear Backup Lights. Has anyone tapped into this signal to supply the radio?

Also, for accessory power, did you tap the fuse panel or did you find another switched power source to tap? And finally, did you find an illumination source in the center console to use to supply the radio?

Thanks,
Al

alvitdk

Following, as I will do the same in a couple of weeks, but with the Pioneer AVH-W4400NEX, but I would think thats a similar setup.
What camera did you go with, as I'm struggling finding a good integrated solution?

NuttyProfessor

From the Porsche radio schematics I remember seeing, the blue/black cable was used on MOST based head units as a reverse indicator. This is the reverse signal cable that would need to be tapped into. Regarding the switched/constant 12v connection, wouldn't that power be at the OEM head unit? Therefore, if you purchase the correct wire harness adapter, then you're pretty much ready for connecting into the aftermarket radio wiring? I hear some people tap into the cell phone accessory connector on some of the older cars, but I'm sure what model of 981 you have.

algiorda

Thanks for your reply. The schematic I have shows the Blu/Blk for the Navigation Radios is for one of the Microphones. I purchased the wiring harness from Suncoast, and they include a Tap to the Fuse panel for power???? Go Figure. I, like you, assumed if the existing radio has power, that should transfer to the new head?!? I also tapped the Cell Phone connector on my since departed 2004 Boxster S and it worked like a charm.

Audioi

Wow, what was that!

algiorda

I ordered this one as I didn't want to put any holes in my bumper, if it doesn't work out. I'll try something else:

algiorda

That, was a 70's flashback! LOL

I tried posting a schematic image, but it obviously didn't render correctly...lol

NuttyProfessor

Yea, like a lot of DIYers, I've enjoyed tinkering with radios over the years. Like a lot of the European cars, the radios are not always that easy to modify especially the modern "infotainment systems". I would think radios in this generation of Caymans still work off switched and unswitched 12V power. I don't know why they're making you tap into the fuse box. They seems rigged and backwards.

Audioi

I purchased a JL Audio system including the Fix82 and the latest multi channel amp with DSP, the biggest issue is finding the correct harness adaptors to retrieve the analog signal from the CDR31. I am not willing to hack into the factory loom or J hook anything.

Fined

Also working on an audio upgrade with AVIC 8400. Excited to get this thing powered up and check it out. My Cayman is 987.2 though so I can't speak to your wiring situation. I found illumination wiring right behind the head unit, going to the emergency flasher button (which is illuminated when the lights are on). I found the ignition by using a fuse tap off the fuse box. I got a wiring/installation guide by buying my NEX 8400 from crutchfield (it also came with 2 month return policy which is cool).. also got another wiring guide from Suncoast with this harness/bezel kit. https://www.suncoastparts.com/product/OEMRADDELE.html. They may sell one for the newer cars too, so I'd check that out. Gutting the whole craptastic Porsche system and putting back some audio goodness

BoulderGeek

I'm working on the same thing for my 987. Finding connectors for the Porsche loom back to the new radio seems tricky, without a $350 kit.

I am going the route of leaving off CANBUS integration, and just wiring to the reverse line, the illumination line, power and ground. I will use a cheap MOST interface to keep the Bose amp and speakers. Trying to go sub-out directly to the Bose sub inputs through an RCA noise isolation filter. Installing cameras front and rear, while I am in there.
Any info is helpful.

Audioi

I am surprised to see induction used in a 2013 car connector!

redvancitycayman

For the illumination source for the 981, I figured out that you can tap red/gray wire in the hazard/central locking button harness. I used the wiring diagram in the service manual and a multimeter to test this out and it worked!