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Old 05-04-2019, 04:16 PM   #1
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Join Date: May 2019
Location: Alberta, Canada
Posts: 1
Weird Stereo Wiring

Hello Everyone. I am sure this has been beat to death on here but so far I'm striking out trying to find info on my particular stereo wiring. I have a 1999 Boxster and want to put a new head unit in it. None of the kits I find are the same as my car. I've been to a couple of stereo shops and they say I may have to cut the plug off of one of the harnesses then figure out which wires need to go into the bigger plug. I really don't want to get into cutting and hacking.

I have a factory amp up front and the car came with single cd player/stereo. Any help identifying which wires are which for my application would be appreciated. I am trying to include a pic of my current wiring. This is all there is for plugs, nothing else further in the dash, just this.

Thank You in advance!!

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Old 05-19-2019, 02:30 PM   #2
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Join Date: Mar 2014
Location: Arvada, CO
Posts: 419
The black connector is the main power connector with a standard DIN pinout.

Wiring is:
1. Speed signal
3. Telephone Mute
4. 12V vbat (term. 30)
5. Antenna amp. power
6. Illumination (term. 56d)
7. Key in ignition signal (term. 86s)
8. Ground (term. 31)

The yellow is the preamp output connector to the amplifier.

Wiring is:
1. Rear Left +
2. Rear Right +
3. Output Ground
4. Front Left +
5. Front Right +
6. 12+

'03 S, manual, 18" Carrera wheels, PSM, PSE, Litronic, 996 Cluster, +
Qmulus is offline   Reply With Quote

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