[Talldog]

Hello everyone, I am new here and am from Ontario, Canada. This is my first post, although I have been reading quite a bit on the forum up to this point.

Anyway, I recently acquired a used 2009 335i with NAV and CA. It has the HiFi sound system. I am trying to find a source in my fuse box for a remote turn on for my aftermarket amps. I am aware of the black wire remote from the HU (pin 13) leading to the amp at pin 10. Problem is, I think it has possibly shorted to ground and blew the remote circuit, maybe my fault and maybe not. The black remote wire was working previously until the battery drained overnight. I then charged it and the amp turn on mysteriously went kaput after that. Amp ground input was next to the remote input and there were loose strands on the ground that possibly touched the remote input when the seat was lowered. Doesn't matter why at this point. I don't know offhand how to fix it but I'm sure it is doable. In the meantime, I wanted to bypass this factory remote lead and tap into the fuse box for an alternative remote source. I have used the search feature exhaustively but have found nothing in the end that works. Terminal 15 looked like a sure bet but in my car the amps turn on, but never go off. I have tried many of the fuse terminals and it would seem that most are non-switched, meaning the amps will be on even when the car is sitting doing nothing.

Does anyone know definetively if there is a switched source in the fuse box that would power on the amps when the ignition is on and then allow a shutoff, even if a delayed one, when the car is idle and turned off. I have many years experience with car audio installations but this Bimmer is the first one to have me stumped by such a seemingly simple problem.