Basically here's my setup. I'm not a big stereo person, and know next to nothing about car stereos.

Here's my problem/situation. I have my iPod (Mp3 player plugged into an FM modulator which then plugs directly into the antenna port on the back of my stock head unit (2001 SE). Problem is, is that I can't get it really loud at all. I'm also told by friends that the sound quality is for *#$!, but it doesn't bother me, I just wish I could make it louder. So, what I'm looking for, is something to plug in between my iPod and the FM modulator to amplify the signal. The modulator has two RCA inputs on it (a red and a white), so I assume almost anything would fit, I was just wondering if anyone had any suggestions for a quick, easy and CHEAP fix for this.

Thanks,
Alex