New stereo installed

I also wanted to just hook up an mp3 player but I couldn't find a suitable solution. I don't keep CD's around and I don't even have an RF antenna so the only thing I needed was iPod/iPhone compatibility.

I considered powering the four speakers with a 4-channel amp and using a mini-stereo jack to RCA converter to get the signal to the amp, but the equalizer on the iPod is pretty basic and I wouldn't have a way of adjusting my sound. In the end I thought the best option was to install a stereo that's made for the iPod and has a powerful sound processor.

I used the Kenwood Excelon KDC-X794 which is designed for easy iPod connectivity, puts out 22 watts RMS, and has plenty of sound-shaping options. It allows me to compensate for the size of the car's interior, location of speakers, and size of speakers. Also has a 5 band EQ with "highway sound" which boosts the frequencies that compete with road noise so you can hear more detail over the loud engine.