Want to get rid of amp and woofer
05-01-2013, 06:05 PM
#1
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Join Date: Oct 2010
Location: 1986.5 928 Wisconsin
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Want to get rid of amp and woofer
I haven't messed around with stereo stuff for a while so I'm trying to get a grasp on what I need to do to remove the amp and subwoofer that is over my battery. Lot of work to get to the battery and not sure it's really adding that much to the stereo. I'm pretty sure its a lot of wiring as I believe the stereo feeds into this then the amp goes to all the speakers. Any help would be appreciated. Physically removing it is easy but getting the stereo to work again worries me.
05-01-2013, 10:49 PM
#3
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Location: Memphis, TN 1987 S4
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Power amp & woofer
Just had a Kicker powered hideaway sub installed & it transformed my listening experience. It's small enough that it fit perfectly on the seat back when it's in the up position. Te installer put some Velcro on the back, but with the carpet it fits snug. $300 sub & $79 Sony Radio with iPod connection & Sirius Radio and you will be good to go. Only problem: music sounds so good at high volume, I can't hear the motor purr.
05-02-2013, 12:53 AM
#4
Burning Brakes
That is one fugly and worthless setup. Did they just leave the bare speaker sitting there with no enclosure?
I added a spare tire sub to mine and love it. It fits in the spare like it was meant to be and can be lifted out and moved to the side in two seconds for access or unplugged taken out completely if needed.
There are also a number of small amps that will fit along the passenger seat in the stock pod location.
This is a quick write up I posted to a few other forums a while back.
Head unit is a Kenwood KDC-248U that the previous owner installed. Looks discreet yet has Ipod, USB and Aux inputs.
The 3½" door speakers were trashed, foam surrounds were long gone. I replaced them with 4X6 Sony 4 ways. Door metal had to be trimmed but well worth the effort. Mids and highs are excellent.
The stock rear speakers sound great but I removed a panel to inspect one. These are round 4" speakers, not the oval looking speakers I'd seen someone else post a picture of. From the sound I really expected to find something much larger. The magnet is huge at 3" and quite strong as my ratchet kept sticking to it. Oddly it looked brand new, the surround appears to be butyl rubber instead of foam so it went back in. That single Blaupunkt weighed more than most boxed sets of 4" replacements I picked up in the store.
Bass was needed and I didn't want a sub sitting in the trunk area. Bought a spare tire subwoofer from a Nissan Murano off Ebay for $50 bucks shipped. I opened the case, removed the factory plug and added some wiring with quick connect terminals. The woofer is a Bose dual coil about 6" in diameter.
It looks like a factory fit inside the 928's spare tire. I left enough wire so it can easily be moved out of the way to get at the spare and battery. Quick connects allow it to be removed in seconds. When placed just right the car jack fits nicely behind the tool kit panel.
Now I needed an amp to power it (head unit has rear sub outputs) and somewhere to hide it. I bought a Legacy LA120 amp off Amazon for about $30. It's a 240 watt 2 channel and pretty small. I removed the original Blaupunkt amp and installed the Legacy in its place. Not much room to spare, RCA jacks need to be angled. All power being there made life easy...Red was 12 volt main power, brown ground and white turns it on when the stereo is turned on. Runs cool after a lot of use so I don't think there will be overheating problems under the carpeted cover.
The bass that little sub puts out is amazing and the overall sound is incredible for a stock look and little money. It's not a ricer system that can be heard thumping a block away but a clean sounding system that's still capable of vibrating the seats.
Kenwood in the dash:
Legacy amp in place. Blaupunkt on the side in comparison:
Cover fitted back in place:
Bose subwoofer in place:
All cleaned up and done:
__________________
George in Indiana
928 Weissach #153
I added a spare tire sub to mine and love it. It fits in the spare like it was meant to be and can be lifted out and moved to the side in two seconds for access or unplugged taken out completely if needed.
There are also a number of small amps that will fit along the passenger seat in the stock pod location.
This is a quick write up I posted to a few other forums a while back.
Head unit is a Kenwood KDC-248U that the previous owner installed. Looks discreet yet has Ipod, USB and Aux inputs.
The 3½" door speakers were trashed, foam surrounds were long gone. I replaced them with 4X6 Sony 4 ways. Door metal had to be trimmed but well worth the effort. Mids and highs are excellent.
The stock rear speakers sound great but I removed a panel to inspect one. These are round 4" speakers, not the oval looking speakers I'd seen someone else post a picture of. From the sound I really expected to find something much larger. The magnet is huge at 3" and quite strong as my ratchet kept sticking to it. Oddly it looked brand new, the surround appears to be butyl rubber instead of foam so it went back in. That single Blaupunkt weighed more than most boxed sets of 4" replacements I picked up in the store.
Bass was needed and I didn't want a sub sitting in the trunk area. Bought a spare tire subwoofer from a Nissan Murano off Ebay for $50 bucks shipped. I opened the case, removed the factory plug and added some wiring with quick connect terminals. The woofer is a Bose dual coil about 6" in diameter.
It looks like a factory fit inside the 928's spare tire. I left enough wire so it can easily be moved out of the way to get at the spare and battery. Quick connects allow it to be removed in seconds. When placed just right the car jack fits nicely behind the tool kit panel.
Now I needed an amp to power it (head unit has rear sub outputs) and somewhere to hide it. I bought a Legacy LA120 amp off Amazon for about $30. It's a 240 watt 2 channel and pretty small. I removed the original Blaupunkt amp and installed the Legacy in its place. Not much room to spare, RCA jacks need to be angled. All power being there made life easy...Red was 12 volt main power, brown ground and white turns it on when the stereo is turned on. Runs cool after a lot of use so I don't think there will be overheating problems under the carpeted cover.
The bass that little sub puts out is amazing and the overall sound is incredible for a stock look and little money. It's not a ricer system that can be heard thumping a block away but a clean sounding system that's still capable of vibrating the seats.
Kenwood in the dash:
Legacy amp in place. Blaupunkt on the side in comparison:
Cover fitted back in place:
Bose subwoofer in place:
All cleaned up and done:
__________________
George in Indiana
928 Weissach #153
05-02-2013, 08:48 AM
#6
Drifting
smart move, dead weight back there. A no-no in a Porsche.
follow everything from the amp to the stereo and remove, your radio will still work once you are finished.
follow everything from the amp to the stereo and remove, your radio will still work once you are finished.
05-02-2013, 09:11 AM
#7
Rennlist Member
Try to determine what inputs and outputs are connected on the amp to have an idea of what will no longer function upon its removal.
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05-02-2013, 09:18 AM
#8
Drifting
Look at the amp, there are three types of wire connections. 1 pair or so out power connected to battery and maybe ignition for on/off. 2 are signal wires from the headunit or inputs. 3 are the speaker wires either going to the sub and possibly the rest of the speakers in the car. Disconnect 2 (inputs) and see if sound still comes from speakers... if so remove both amp and sub... if not, only remove sub.
