Highest Amp Alternator For a 72 Duster

Thanks YoungDuster!! I built a heavy metal frame that mounts to the rear seat mount bolts then I built a 1/2" plywood board to mount to the frame. I mounted the speakers and the amps to the board then installed the board into the car with the frame. I ran a heavy cable straight from the battery to the amp fuse (the one in the pic). This takes all the load off of the cars weak electrical system. The majority of power goes from the battery to the amp/speakers. All newer radios come with a wire that automatically turns on the amp(s). It's very low amperage (very low) so it can't hurt the cars wiring. The alternator charges the battery and the battery supplies power directly to the amp/speakers. The only current that goes through the car's electrical system is the very small wire (28 gauge) that turns the amps "on".
I'll post some pics later showing the battery hook up.

Treblig