I installed my sub and amp (500 watt RMS) into this 91 Loyale that I just inherited from my Dad. The sub and amp was previously in an 02 Buick Regal, and worked perfect.
When the Loyale hits higher RPM (about 2500), the voltage gauge goes up, near 16 or 17 volts, and the amp turns off. Once the RPMs go back down after I shift, the amp turns back on.
Can an alternator provide too much voltage? I thought the voltage was regulated but maybe it's not. The lights don't flicker or get dim when the sub hits, so there's plenty of amps.
Is there maybe a way to mod the alternator in some way to make it put out a constant voltage?