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Ran power to the battery along the drivers side door sill. grounded to the bolt for the rear seat thats under the seat bottom.
Figured out the wire colors for the rear speakers. These are all on the rear most plug into the rear bose amp on a series 2 car
Left Rear + (from headunit) Green Orange
Left Rear - (from headunit) Blue Orange
Right Rear + (from headunit) Gray Red
Right Rear - (from headunit) Brown Red
Power on trigger - Pink with Black stripe
I connected the signal wires directly to the low level inputs (not speaker level) via RCA jack to the amp. Tapped the Pink/Black-stripe and ran that to the turn on. Works correctly and no funny business when you turn on the AudioPilot or Centerpoint features.
Other things I noticed.
The plug closest to the back seats has all the signals for the speakers from the headunit. This includes both front and rear and the center speakers. The front and rear are bundled into 4 wire shielded cable and the center channel has its own 2 wire shielded cable. There are some other wires in this plug that I did not identify but I believe they may be part of the audiopilot and centerpoint features.
The middle plug has the wires for the front speakers and the center speaker outputs.
Power and the output to the rear speakers are in the plug closest to the rear of the car. There are two other wires in this plug that I don't know what they go to. Power and ground are supplied via the white and black thick wires going into this plug
Adding a sub to the bose system definitely makes the system much better overall. No need for two 12s or two 10s just a single 10 with about 400watts RMS is good.
Also to note after removing the negative terminal the TCS and DSC will be disabled until you move the steering wheel all the way to the left and to the right. I did this with the engine off so no power assist.
Here is a pic of the 3 connectors going into the rear amp. Use my post above to see what wire colors are which. Sorry for the crappy cell camera pic. It's very bright in the back yard so it was hard to get a picture
Glad I ran across this thread now. I just bought my 2009 R3 yesterday and noticed that the Bose in this car is not as round as my Nissan. I thought the previous owner might have replaced some components or messed something up. Sounds like a sub is gonna be the way I wanna go.
Linear Mode
