Question, is the box under the drivers seat an amp? I saw that while crawling in the floorboard trying to get to the fuse box.

Well, I wish I could report what I did, BUT IT WORKS!!! I read you're link and it made since. I had wondered what that line was for. I took it all apart, checked the antenna again, checked the blue/white cable on the harness, and then tested but got nothing. Unplugged/replugged everything again and ...

YES! The antenna connector was extremely hard to unplug the first time. I thought it was hard-wired in at first, but after thinking it through that didn't make sense. After several more tries it finally came loose. And you're correct on your last question as well. The radio will change frequency but...

Thanks joatmon, and thanks for the reply! Yes, there is a second place to plug in a connector on the back of the radio, but when I removed the radio nothing was plugged into it. Maybe there was and was knocked loose/out of sight when I removed the radio? This 2nd connection is a little smaller than ...

Non-audio guy here (although I am technical), so I ask for leniency if I'm in the wrong place. I was just given a 2003 Pontiac Vibe w/stock audio. I wanted to take the JVC stereo from my truck and put it in the Vibe since the JVC has aux input. Well, I started taking everything apart in the car, but...