I have an 2002 Jeep wrangler Tj with the subwoofer in the Console. I wanted to upgrade the radio, so I bought the DEH-P3000Ib by Pioneer. Circuit City installed it, but that was all. They made no adjustments, the subwoofer isn't playing and I have no idea how to get the best sound from my stock speakers, there are just to many settings. Please help, I have been working on this for over a week and haven't gotten anywhere. Thanks for all your help.