I was wondering if anyone knew of a good female ended RCA cable that was thicker than the cheap ones? The ones I did use, the outside wire was very thin as well as the other wires inside the cable. I actually had to do over my solder because the wires actually broke when putting it back. I use my phone for Pandora radio in my car and there is electrical noise when nothing is playing but stops when something is playing. When I plug my phone in to charge it while listening to Pandora I get the electrical noise whether something is playing or not not as bad when playing the music but there. Anyone have a solution as for what I've done wrong?

This was a Bose System and was converted to NAV with no problems other than when I am listsening through the Line In I recently added.
I did not get the Video in hooked up at all and don't know if that could be why.