wooward Posted January 23, 2011 Report Share Posted January 23, 2011 Just installed a AVH-P5200BT. When I make a phone call (iPhone4), I get a noise/humming in the background. It's still there even if I unplug the mic. It's pretty noticeable at volume level 10. The hum is not present if I listen to the radio, cd, dvd. Any ideas? My front L/R are run through an amp. Maybe I'll try to bypass that. Quote Link to post Share on other sites
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