Is MP3 AUX Jack Grounded properly?

[talnlnky]

Originally Posted by xenoxaos

I had the same problem, and my guess is it was from ground loop interference. Mine would only do the popping noises and such when it was also being powered from the 12v plug, and when I unplugged it, all the noise and interference went away. Since then, I've gotten a Harman Kardon Drive+Play, and have not had that problem, and love the unit.

you can't get a ground loop from something that runs off of DC (portable device) and is separated from the circuit. If you power your mp3 player via the cig lighter thats a different story.. but you didn't mention that.

You could have a bad connection/ground internally on the mp3 player... which is just as likely, if not more likely than the toyota having the bad ground.

Your signal is being amplified a huge amount... so it's prolly the mp3 player, and normally you just don't notice the pop.