as far as I know there is a relay that turns the onboard amps on right? I'm getting highs but no bass, the speakers all work so it has to be something else. I was told that there is a relay in the drivers side kick pannel but theres nothing there. Theres other relays but no radio amp turn on, and does it make a diffrence what factory Infinity radio I use, I got one out of a 92 Imperial and that works fine.