Highest Amp Alternator For a 72 Duster

Treblig said
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

Thanks for sharing your experience. I plan to add a sub and a few extra speakers with amps to match (should be less draw than yours). Did you have to upgrade the alternator or the alternator wire that's charging the battery?

I planned to run my power through the firewall into a separate new fuse box for all my new electrical additions, my concern was if the stock alternator and maybe 14 gauge wire, could handle it.

But prior to reading this thread I had not thought of if a new alternator (if needed) would cause an issue with volt gauge.

Thanks for sharing your experience and nice work on the car!