Has anyone been able to find an amp turn on for the Rockford factory amp. I want to install a new head but don't want to have to install another pair of amps to power half the speakers in the car.

I havent' had any luck either, I had to re wire the tweeters and the door speakers. In the process, I burned up the amp which I think is located under the dashboard on the passenger side (that is where all the smoke was coming from). I hope this helps out.