My car radio just died, so I plugged in my cell phone into the car radio and used the FM radio in my cell phone, it worked great . I don't want to keep my cell in the car .So what do I look for in a small portable radio that will plug into my car radio, I'm worried about interference. Should I be worrying about the FM part of broadcasting , or do I have to worry about clear reception in both AM and FM. Thanks folks.