I posted this in the tech section but maybe this is a better place as I have had no response
I installed an amp and subs but I'm looking for a + trigger for the amp in the trunk area that triggers when the ignition is turned on. I googled the wiring diagram for this car but came up with to many variances. I have a factory amp (which I'm keeping intact for the navigation system) and cd changer in the trunk which would be convenient for the connection.

 

Paul,
Please.....

 

Sorry I was under the influence when I posted this

 

OK I figured out, I will share for anyone who is interested.
I would draw a diagram but I don't have a scanner on this computer.
I left the existing system intact as I wanted utilize all of the navigation options. These connections were all made at the factory amp location, there was no need to run any cables to the front.
Red/White- positive trigger to new amp (ignition switched)
Left Rear Speaker:
White/Blue (+)
Yellow/Blue (-)
To Left Rear connection of the Line Output converter
Right Rear Speaker:
White/Green (+)
Yellow/Red (-)
To Right Rear connection of the Line Output converter

The line output converter then connects via RCA to the new amp. I also replaced all of the factory speakers. I simply leave the sub woofer setting on the navigation system to nil and control the new amp with the bass setting.

 

paulb...so let me get this straight...you used the rear speaker wires to connect to the line converters which then fed into the amp. so then your rear speakers are now powered by the new amp and you can still add a sub to the remaining channels of the new amp? wm