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Sammy Sandbag · 07-18-2004, 06:25 PM

Finally got a car charger for my mp3 player yesterday. Problem: as soon as I plugged it in, the music stopped and all I got was engine noise. At first I thougt it was a bad charger, but then I tried it with the headphones and I got a perfect signal. It's been a while since I've taken a course in electricity, but my guess it's a bad ground loop caused by the PIE inline amplifier. Something else new that I noticed is that if you simply pause the mp3 player and crank the HU volume you can hear a lot of alternator noise through the speakers. I think a ground loop isolator would be the logical fix, but I don't know for sure. Anyone with more knowledge have any suggestions?

07-18-2004, 06:25 PM	#14 (permalink)
Sammy Sandbag Super Moderator iTrader: (5) Join Date: Apr 2004 Location: Savannah, GA Posts: 6,018 Thanks: 0 Thanked 3 Times in 3 Posts	Finally got a car charger for my mp3 player yesterday. Problem: as soon as I plugged it in, the music stopped and all I got was engine noise. At first I thougt it was a bad charger, but then I tried it with the headphones and I got a perfect signal. It's been a while since I've taken a course in electricity, but my guess it's a bad ground loop caused by the PIE inline amplifier. Something else new that I noticed is that if you simply pause the mp3 player and crank the HU volume you can hear a lot of alternator noise through the speakers. I think a ground loop isolator would be the logical fix, but I don't know for sure. Anyone with more knowledge have any suggestions? __________________ -Counsel Yourself 2004 Nissan Smoke Titan LE 2WD Audio install...