Hey guys kind of stuck. I have a 2013 F150 screw with a 5.0. I was trying to install a aftermarket subwoofer. Got everything hooked up and amp went into protection mode. Checked for short to ground at amp and sure enough there was. Disconnected everything and started testing at the battery. Positive terminal short to ground. Disconnected engine fuse panels and one if the leads is short to ground and the others are not. Hooked up forscan and the only code I have is B10F1 for the ignition. Is it possible this could cause a short bad enough to put a amp in protection mode? Went down the BCM rabbit hole but seems like everyone had U codes and other issues. Everything in my truck works as it should. I'm at a loss besides tearing Everything down and testing individual circuits. If anyone can point me in a direction I would greatly appreciate it.