96Blazer Posted December 25, 2011 Report Share Posted December 25, 2011 I agree, Big 3 can be done for much cheaper then adding a second battery. I had the same issue in my first install in a Pontiac Sunfire and the "Big 3" upgrade cleared it all right up. Quote 2001 GMC Jimmy SLE 4X4 Floor Shift AutoHeadunit - Alpine CDA-117Front Door Speakers - Alpine SPS-600C MidsRear Door Speakers - NoneDash Speakers - Alpine SPS-600C TweetersSub Amp - Rockford Fosgate T4002Mids+Highs Amp - Rockford Fosgate P4004Subwoofer - P3D215 Fosgate Punch 15Sub Box - Rockford Fosgate designed "powerful" ported box Built by myself i would rather run cheaper but sexier then expensive and fucking ugly. Link to comment Share on other sites More sharing options...
lilone71742 Posted March 9, 2012 Report Share Posted March 9, 2012 Yeah big 3 upgrade can run from $55-$200...depends on what you get. how would it cost that much??????all your doing is 2 grounds and one positive wire I spent close to 40. 10 ft of 0 gauge from knu konceptz (24 shipped) and about 10 on ring terminals. If you add in solder its about 45. Quote 2006 Chevy Trailblazer ~ KX 1200.1 ~ 2 Skar VVX 15" ~Big 3 upgrade ~ Pioneer AVH 4100 ~ 275 Amp Singer Alt ~ PRV 6.5 front doors~ 6000K Hids Link to comment Share on other sites More sharing options...
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