I installed my x930bt yesterday and have a problem. My setup is wired in with none of the speaker wires attached in the harness being that i use an external amp for my door speakers. My amp is messed up and i am getting a bad hum in the speakers that are wired to it which i inderstand. What i cant figure out is that i tapped my two tweeters onto the unused speaker wires coming from the head unit and its making like a ticking interference noise in them. All the unused wires are capped at the ends so no exposed wire is left. Have any suggestions? 2002 dodge ram 1500. Also i just put in power windows and tapped onto brown acc 1 wire if that may matter. Thanks for the help

Also to add, the noise exists when the truck is both cranked and when the key is turned back with the engine not running. Should I try to ground the head unit somewhere else? It's grounded in the harness right now.