POWER AMPLIFIER A - BLACK 12 WAY

pin 1 - 18 BL RIGHT DOOR SPEAKER (-)
pin 2 - 18 BL/BR LEFT DOOR SPEAKER (+)
pin 3 - 18 BL/BR LEFT DOOR SPEAKER (+)
pin 4 - 16 BR GROUND
pin 5 - 18 BL/DG ENABLE SIGNAL TO AMPLIFIER
pin 6 - 18 YL/VT LEFT REAR SPEAKER (+)
pin 7 - 18 YL RIGHT REAR SPEAKER (-)
pin 8 - 18 BL RIGHT DOOR SPEAKER (-)
pin 9 - 18 YL/VT LEFT REAR SPEAKER (+)
pin 10 - 18 YL RIGHT REAR SPEAKER (-)
pin 11 - 16 BR GROUND
pin 12 - ---------------------------------
This is the diagram for the premium stereo, I believe base model is the same. These are unamplified signals for the best sound quality, you don't want to amplify an amplfied signal.
I did my install with a single sub run off a two channel amp. I know the diagram looks weird, and it is, I know why two + and no -? It's German, thats all I can say.
***I do not like scotch locks or butt connectors, however I recommend them for initial layout so you can test to see if your system works without completely hacking your harness.***
1 - Pull back the passenger side carpet where your feet set.
2 - Remove styrofoam block.
3 - Remove the 3 10mm nuts holding the metal bracket (amp.) 1 at the top center, 2 on the bottom left and right.
4 - There are two connectors side-by-side, one 12 pin and one 18 pin. Remove the 12 pin connector.
5 - Attatch your remote wire to pin 5 BL/DG Enable signal to amplifier.
6 - You will now need to create RCA's. You do this by getting theRCA with the RCA end on one side, and two open wires on the other.
7 - Take your Left and Right channel RCA - and connect it to pin 10 Right rear speacker negative.
8 - Take your Left and Right Channel RCA + and connect it to pin 9 Left rear speaker positive.
9 - Run your wires to your amp, There is a body ground just below the right rear quarter window that I recommend for a ground.
10 - Now refer to above where I stated I ran a 4 channel amp to one sub. The way that the factory head unit is set up, it seems that they bridged the headunit before they got to the amp. So I had to run my speaker wire from Left channel + to the positive terminal on the sub, and Right channel positive to the - terminal on the sub.

I know two +, but I scratched my head for an hour on this, because I wasn't getting sound untill I hooked it up like this. It sounds great even with the crappy box I have.
I hope this helps, and if there any questions feel free to ask.

Shawn