My son has a 2010 2 door GTI. We recently upgraded the stereo system by installing a new 5 channel amp & new component speakers in doors & back seat. Including all new speaker wires (over 100' worth), leaving the factory wiring intact & not used. The head unit was already aftermarket, so it remains the same. I drilled out unused spots in the door connectors in the A-pillars to fit the new, larger, wires through. Once we got everything back together, none of the electronics (window, lock, mirror, or signal in mirror) work in the passenger door. It throws a 01332 code - no communication to door module. Fuses are all good, all of the factory wiring appears to be intact, I have continuity of all wires on both sides of the 28 pin door connector, & I've tried two different used door modules & door latch. Still no communication with the passenger door module. I'm at a complete loss. Any suggestions would be greatly appreciated.