To give you more information,

I have a 6 disk cd AM/FM infinity sound system in my Ram 1500. I want to install some type of USB connection but do not know how to do it - Any ideas?

Thanks in Advanced

 

None of the stock radios will support a USB input. The single disc radio does have an aux in, but it's a 1/8" jack (like a headphone jack). If you're looking just for power, they do make cigarette lighter to USB power adapters, but they only supply the power. If you're looking for a way to use your stock radio with an MP3 player, Dodge does make an iPod adapter, but it's pretty expensive. The only other option for the stock radios is an FM modulator. I use the Monster one and it works pretty well, even in the very crowded Boston radio spectrum.