loud Posted July 18, 2011 Report Share Posted July 18, 2011 ok im going to leave my stock battery up front, to do the normal operation of the car. and im putting a d2400 in the back and doing the big 3 upgrade there since it ill be running my amp. http://img560.imageshack.us/img560/5639/altdiagram.png do i need to do the big 3 upgrade to the front battery to even though it will no be powering the subs? Quote Link to comment Share on other sites More sharing options...
shogen Posted July 18, 2011 Report Share Posted July 18, 2011 yes Quote Pioneer Premier P880PRS ll Front Stage: US Acoustics 4060 - Random speakers currently ll Sub Stage: Crescendo BC3500D - 15" Xcon sealed @ 3.28 cubes ll Electrical: - Kinetik HC1800(front) NEW***DieHard P-2(rear) beaker- I know this sounds like a lot of anime bullshit, but it is true. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted July 18, 2011 Report Share Posted July 18, 2011 can you explain how you do the big 3 in the back? Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
loud Posted July 18, 2011 Author Report Share Posted July 18, 2011 can you explain how you do the big 3 in the back? ... all 1/0 awg... ground, power , ect Quote Link to comment Share on other sites More sharing options...
MrSkippyJ Posted July 18, 2011 Report Share Posted July 18, 2011 I know, but the big 3 is an upgrade to your charging system wires, in the front of your car. How exactly are you going to upgrade that in the back of your car? Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
loud Posted July 18, 2011 Author Report Share Posted July 18, 2011 i see your point. i was just wondering if i have to do anything to my front electrical if the amp wont be powered off of it Quote Link to comment Share on other sites More sharing options...
tonedeaf Posted July 18, 2011 Report Share Posted July 18, 2011 Lol...so wait, how is this battery in the back going to be charged? Hooked to the front battery in series is the way it should be. Also mixing AGM and non AGM is a nono. Are you planning on just setting the battery back there by itself and grounding it off to the chassis? I'd suggest not. Just run the car and system on one 12v battery. And use the AGM and get rid of the autozone special. Quote Link to comment Share on other sites More sharing options...
tonedeaf Posted July 18, 2011 Report Share Posted July 18, 2011 You can't do big three in the back. By defenition it is a upgrade to your alt and engine ground wires in the front of the car. Quote Link to comment Share on other sites More sharing options...
MrSkippyJ Posted July 18, 2011 Report Share Posted July 18, 2011 unless your are putting an isolator in, both batteries will be connected to the amp. And there is next to no good reason to use an isolator. From your alt, connect your front battery with 0g. From your front battery, run a 0g wire to your back battery. You can frame ground your back battery OR run 0g to the front. I would recommend the extra run of 0g. Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
loud Posted July 18, 2011 Author Report Share Posted July 18, 2011 did you even look at the picture... Quote Link to comment Share on other sites More sharing options...
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