I bought a new head unit a week ago, a JVC KW-XC777, double din and with an aux in, so I could hook up my IPOD.It works super!
Now I needed something to keep the life in my IPOD during roadtrips, so I bought a "belkin auto kit for IPOD" which basically is a charger with a built in amp. Really cool, but about 10 seconds after plugging it in in my cigarette lighter outlet it starts to click, as in click on, click off and that translates in sound, no sound, sound, no sound... needless to say, really annoing!
At first I though I bought a damaged charger, so I tried it out in my wifes Toyota matrix, NO PROBLEMS!!!
Also, when I just put the charger in, immediately the stereo has a lot more static... And the whole reason for me buying a new charger was because I thought that my old one was broken, because that had the same problem (note: also works great in the matrix...)
So now I'm thinking there's something wrong with my car's 12V output? It's a 2005 wrx wagon with 1300 Miles on it, so I don't expect the alternator to be broken...
I did install a grounding kit recently, but I thought that was supposed to help for these kind of things...