Could it be a problem with shielding? If you run two wires parallel and they are both producing a magnetic field when on couldn’t that affect performance? Maybe the wiring for the amp is near the wires for his lights and when both are in use he gets a distorted signal to the amp?
I am not a wiring expert but I just wanted to put that out there. Feel free to correct me and explain any bad assumptions on my end.
I am not a wiring expert but I just wanted to put that out there. Feel free to correct me and explain any bad assumptions on my end.
