bigbodylexus Posted May 12, 2009 Report Share Posted May 12, 2009 I am going to upgrade my electrical system. I already have the Big 3 done in 2 ga. (it was leftover from a previous install) I use 1/0 ga. for my power and ground as far as the amp is concerned. I will be using two Powermaster D3100 for the trunk. Since those will be different from the battery under the hood do I need an isolator? also should I parallel the wiring for those batteries in the trunk? 1990 Chevy Suburban (Big Booty Judy) (4) Sundown Audio Zv5 18's (1) Sundown Audio Salt 12K (1) Sundown Audio SAX-100.4 (1) Sundown Audio SAE-50.4 (2) Crossfire ST-1 Tweeters (2) Obsidian Audio ST-1 tweeters (4) Sundown Audio Neo Pro v3 6.5's Saving 2nd Bass Link to comment Share on other sites More sharing options...
newls1 Posted May 12, 2009 Report Share Posted May 12, 2009 no isolator, and you always parallel the batts to keep a 12v system. If you series them, you would have 24v! I love my staffie So anti FACEBOOK it isn't even funny Link to comment Share on other sites More sharing options...
bigbodylexus Posted May 13, 2009 Author Report Share Posted May 13, 2009 I asked becuase I thought someone asked that question and they said not to parallel the wires 1990 Chevy Suburban (Big Booty Judy) (4) Sundown Audio Zv5 18's (1) Sundown Audio Salt 12K (1) Sundown Audio SAX-100.4 (1) Sundown Audio SAE-50.4 (2) Crossfire ST-1 Tweeters (2) Obsidian Audio ST-1 tweeters (4) Sundown Audio Neo Pro v3 6.5's Saving 2nd Bass Link to comment Share on other sites More sharing options...
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