Quote Originally Posted by KeithGTP03 View Post
It popped out of the radio harness? Remove the harness from the radio, and test it with a DMM or test light and see if you're getting voltage to that wire. It may not have seated all the way back into the connector. (after you've made sure its not just a simple blown fuse). And as for the buzzing, the harnesses that use RCA's are notorious for alternator whine. Get a ground loop isolator and see if it goes away. (you will need two)
PAC SNI-1 - Ground loop isolator
why would I need 2 of them?

Thanks