Radio reception
 

I have a 2002 325ci. It does not have the Harmon Kardon stereo. I added an amplifier and sub in the trunk. I used the cigarette lighter for the remote wire, pulled the power from the battery, grounded it in the trunk, got the input from the rear speakers running through a signal processor. The problem I'm having is I have lost reception on my radio. Does anyone know how to get rid of this problem.