SO we buy insurance write offs and recently got our second G in, this car had an aftermarket amp and sub as well as still has the double din, nice one too. no sound at all and there's one plug missing from the trunk from not the bose amplifier itself but the second little silver box (coupe, 06 I think if that matters) and theres 8 speaker wires spliced into the stock harness. this all adds up however I'm at a loss as to where I can get the plug to splice back in. I believe the speaker wires they added would have went from the amp to the 4 speakers back in the car but really at a loss so any help would be fantastic

KI’m assuming what they did is bypass the stock Bose amp and just have the head unit directly powering the speakers.

Which other her silver box are u talking about? It’s probably the ECU for the “Rear active steering” system, or the Sirius satellite radio receiver.

The other silver box is the telephone adapter unit.

Download the factory service manual from Nicoclub. Nicoclub.com/FSM/G35/coupe. Put all parts in same folder. Start with .fwd file for TOC to all sections.