September 15, 2008I have a 2003 1500 with the 5.9L. I had an optima red top battery for the last 3 years and added a system about 3 months ago. Right after I added the system (about a month), My stock/original alternator went bad. May *or* may not have been caused by the system?? Since then.....about 3 months has gone by and my optima has gone bad, which is just shy of 3 years old. Autozone warrantied it and I installed a yellow top today. I believe my current alternator is a 132 amp. Is there a bigger alternator that you guys are using to keep up with what the amps are drawing *or* is there some supplement that can be added? It''s a relatively small system with 2 amps. 1 600 watt and 1 300 watt. Thanks in advance.