Hi, all. I've crusied through this forum before & I thought I'd join up. I have a question that maybe someone here can point me in the right direction. I have a 2003 z71 Suburban with the Bose set-up. When the vehicle is turned completely off, the radio gets tremendous reception. As soon as the key is put into the run position (without starting the burban), the reception goes to interference. I can't listen to AM at all with the key just turned to on. I had the radio out and everything looked like it was connected fine. I am at a loss and any suggestions would be greatly appreciated. Thanks in advance.