A while ago I had a dashcam & rear cam installed. I recently tried AM radio (which was working perfectly several months ago) and all I get now is a weird noise on any station. If I happen to be close to an AM transmitting tower that frequency will permit a weak signal through but the noise is still there. FM, Sat, USB, BT, Aux all work perfectly well. Vehicle is 2014 ES 350 with NAV Gen7 and "Premium" (ie, "Standard") radio. Any suggestions as to possible cause of problem and/or solutions? AM radio is infrequently used but it would be nice to have it working again

 

Never mind...figured it out. Interference from the wiring to the rear "dash cam". Unplugged that camera and AM is working again.