I'm looking for the simplest way to play my iPhone (iPod, MP3, whatever) in my truck. It's a 2004 F250, so it doesn't have any integrated options that I'm aware of. Single CD, single cassette (but the cassette player broke a while back). I've tried the FM transmitters, but they never seem to work very well. Is there any way to integrate with the current stereo, or is it pretty much replacing the system at this point? I would love to avoid that, and do this on the cheap if I can.