Amplifier Wiring Diagram 2015 Navigator

Does anyone know the wiring scheme for the amplifier module that powers the speakers in a 2015 Lincoln Navigator. I think its the same module that's in navigators for 2007 and u. What I want to do is use it as a preamp to feed a stronger amplifier that will power the upgraded door speakers. I know where the amp is. I want to tap into it there instead of routing speaker wires to each door, tap into preexisting wire there to feed new amp, and then have to go back to doors to feed speakers. Or if someone has a better idea.jd

depends on what system is in the vehicle. I have not heard of anyone getting good results on the newer ford amplified systems getting signal before the amp. When grabbing after the amp you may need to add a piece to sum multiple signals since none of them output a full range signal. It would be best to test the system to find out for sure. The RTA is your friend.

I'm going to use a 4 channel aftermarket amplifier. I just want the outputs to the 6x8's in the doors. I'm ok with leaving the center channel, tweeters and the rear pillar speakers on the factory amp. or I may use another 4 channel amp to power those. I'll decide when I figure out what's what on the factory ampjd