[Go Fast Kid]

I spoke to the engineers at JL about the center speaker. They believe the car sounds great with the four speakers, plus the tweeters in the door pillar.

The door chime, on-star and turn signals play through the audio system not the center speaker.

If you test the audio amp signaling wire, it turns the amp on when the car is on because you need the audio amp to run the door chime, on-star and turn signals. The amp does not turn off with the head unit as most do.