This is an article we did for boats, but it works on cars too. It's how to mount a second alternator to most any engine. This can give enough extra amperage to run a HUGE sound system. The article covers three methods of mounting an extra drive pulley to the front of the engine and also tricks for drilling the bracket holes in the right place without needing to measure. http://www.tongacharter.com/report-alternator.htm PS-Please don't email me about installations. Were driving boats in the Pacific and can't help mount, fix or repair anything. It's just an article to give people a head start in the project. Scott