Hi, I've been installing extra charge points so my power for my satnav and ipod are internal and the cabling is tidy and always on (with ignition).

I've taken a 12v feed from the radio loom, this goes to a standard cigarette lighter socket which has a lighter/usb adapter plugged in. Attached to this adapter is my power for my Garmin Sat nav and a standard ipod cable which feeds power to the ipod.

The iPod is then connected to my radio via aux in, however this morning I noticed interference when the ipod is charging, it;s not static, more like something closer to data (it has a pulse).

I'm planning in replacing the ipod with a new iphone soon which will stream to the radio via bluetooth, which I hope by breaking the hard link to the radio (currently aux in) will remove the interference problem (i'm wondering if it's a feedback-like issue with the ipod being essentially connected in a full circle.

However I wondered if anyone else has found that the 12v power from the radio isn't 'clean' enough and causes similar issues when charging audio devices?

Thanks

Lou

I get this a lot. Have you tried a ground loop isolator?

Maplins do one.

EDIT: Check this guide

http://www.termpro.com/articles/noise.html

Edited 23 July, 201015 yr by Rhoobarb