Cardboardcat15 Posted July 7, 2011 Report Share Posted July 7, 2011 I just received my new batt in the mail, and I now have an issue with grounding. I don't have the wire to do a pos (+) and neg (-) run from the front batt to the back batt, and I have my money set up to the point where I have a certain amount left to spend on deadener and wood while still having money left over for things like gas/food/going out during the summer. So my question is: Is it ok to run only a Pos run of 1/0 to the back batt, and have the back batt ground on the rear strut tower? I currently have a single batt set up and that battery is grounded to the front strut. I remember reading something about grounding rules/issues for different types of cars (like unibody cars and cars with an actual frame), and I want to ask here so I can learn more and not fuck anything up. Once I gather up the funds, I will definitely purchase more wire and do a neg run to the back, but is this OK for now? I want to learn as I go. Hopefully someone can chime in on this! Thanks for all the help. Quote My Channel on YouTube. Check it out for cinematic-style Car Audio videos. https://www.youtube.com/channel/UCcSMhtT-rpopJbdybubDgnQ New 2014 Scion TC 4th Wall Build https://www.stevemeadedesigns.com/board/topic/217173-2014-tc-4th-order-build-3-fi-sp4-15s/ Link to comment Share on other sites More sharing options...
AMI CUSTOMS Posted July 7, 2011 Report Share Posted July 7, 2011 If your car is full frame then then ground to the strut tower in the rear or to just the chassis is fine. Ideally the dedicated run of neg would be best, but grounding just in the rear is fine, things will work as they should. Quote TEAM SOUNDQUBED -- TEAM SOUTH TEAM S.O.B. - Founder & Captain 3x Streetbeat World Record Holder 2017 MWSPL 1st place Mayhem & 4th Xtreme 4 2016 MWSPL 1st place Mayhem/2nd Adv 4/2nd Xtreme 4 2015 MWSPL 2nd place Mayhem & 4th Xtreme 4 2014 USACI 2nd place Streetbeat 5 - 162.6 db 2014 MWSPL 2nd place Xtreme 4 - 144.9 db 2013 USACI 1st place Streetbeat 4 - 161.9 db 2013 USACI 1st place Street Q+ - 162.8 db 2013 MWSPL 3rd Kaos2 & 4th Xtreme 4 2011 USACI 2nd place MOD 1001-2k - 160.0 db 2011 MWSPL 4th place: Adv3 - 157.8 db, Kaos2 - 150s db, Xtreme4 - 140s db 2010 ARSPL 1st place 501-750 - 160.3 db Arkansas loudest Best score to date 164.4 db - Termlab Outlaw Streetbeat 4 - 161.9 db Streetbeat 5 - 162.6 db MWSPL on Dash Legal door open (Music) - 162.5 db Sealed on dash Legal (Music) - 161.1 db - Termlab THE BLACK NASTY CURRENT BUILD & FAB The Black Nasty (6) 15 Rebuild Log 2012 (4) 15 Walled Sierra Build Log Evo X build log Facebook page The Black Nasty Link to comment Share on other sites More sharing options...
Cardboardcat15 Posted July 8, 2011 Author Report Share Posted July 8, 2011 If your car is full frame then then ground to the strut tower in the rear or to just the chassis is fine. Ideally the dedicated run of neg would be best, but grounding just in the rear is fine, things will work as they should. Ok, thanks. I thought would work, but I wanted to make sure. Quote My Channel on YouTube. Check it out for cinematic-style Car Audio videos. https://www.youtube.com/channel/UCcSMhtT-rpopJbdybubDgnQ New 2014 Scion TC 4th Wall Build https://www.stevemeadedesigns.com/board/topic/217173-2014-tc-4th-order-build-3-fi-sp4-15s/ Link to comment Share on other sites More sharing options...
pburke2009 Posted July 9, 2011 Report Share Posted July 9, 2011 Not trying to jack the thread but i have one question how do you set up dual battery setups im looking to switch out my stock one and add one in the rear and wanna know what and how to do it b4 i try to do it myself and it not work Quote 2008 Dodge Avenger SE Pioneer 4300-UB Headunit DC 1.2K 10"DC Lvl 3 with Lvl 4 coil... 15" DC Lvl 4 JVC Arsenal 3-way Component set Link to comment Share on other sites More sharing options...
MrSkippyJ Posted July 9, 2011 Report Share Posted July 9, 2011 Not trying to jack the thread but i have one question how do you set up dual battery setups im looking to switch out my stock one and add one in the rear and wanna know what and how to do it b4 i try to do it myself and it not work you connect the + of each battery together (use a fuse right after the front batter and right before the back battery) and connect the - of each battery together. 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...
lem43606 Posted July 9, 2011 Report Share Posted July 9, 2011 Not trying to jack the thread but i have one question how do you set up dual battery setups im looking to switch out my stock one and add one in the rear and wanna know what and how to do it b4 i try to do it myself and it not work Its ALMOST the same as wiring up a speaker in series... just positive run to the rear battery before the amp, then fuse (if you want) then have seperate ground wire from battery and amp. DO NOT ground your amp to the neg - terminal on the battery Quote 2 Fi BTL N2 18s Fully LoadedSundown Audio NS-1Kenwood 845 HU Clarion EQ4 Juicebox 3100sKnu Wire"Big 3"Mechman 270a156.3dBTeam GG. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted July 9, 2011 Report Share Posted July 9, 2011 (edited) Not trying to jack the thread but i have one question how do you set up dual battery setups im looking to switch out my stock one and add one in the rear and wanna know what and how to do it b4 i try to do it myself and it not work Its ALMOST the same as wiring up a speaker in series... just positive run to the rear battery before the amp, then fuse (if you want) then have seperate ground wire from battery and amp. DO NOT ground your amp to the neg - terminal on the battery Why not ground it there? And I think you meant wiring up a speaker in parallel, which it is exactly the same as. Edited July 9, 2011 by MrSkippyJ 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...
pburke2009 Posted July 9, 2011 Report Share Posted July 9, 2011 okay thank you what is a safe fuse size for most batterys will have a kinetik or xs one big battery whatever replaces stock and a small one in the back Quote 2008 Dodge Avenger SE Pioneer 4300-UB Headunit DC 1.2K 10"DC Lvl 3 with Lvl 4 coil... 15" DC Lvl 4 JVC Arsenal 3-way Component set Link to comment Share on other sites More sharing options...
BJD3 Posted July 9, 2011 Report Share Posted July 9, 2011 (edited) Not trying to jack the thread but i have one question how do you set up dual battery setups im looking to switch out my stock one and add one in the rear and wanna know what and how to do it b4 i try to do it myself and it not work Its ALMOST the same as wiring up a speaker in series... just positive run to the rear battery before the amp, then fuse (if you want) then have seperate ground wire from battery and amp. DO NOT ground your amp to the neg - terminal on the battery Why not? My understanding is the battery is the best ground you can get since everything grounds at the battery anyway. @Pburke You fuse for the wire. So if its OFC 1/0 use 300a, 4gauge use 120a, etc. Edited July 9, 2011 by BJD3 Quote Anti Peel and Seal...lol You may be offended by the above. Don't take it personally, I'm just abrasive. 2002 Buick Park Avenue DC Level 4 M2 12 D2 Car Audio Bargain 1600.1 Eclipse CD3200 ~2 cubes @ 34 hz. Stinger Roadkill Expert Link to comment Share on other sites More sharing options...
pburke2009 Posted July 9, 2011 Report Share Posted July 9, 2011 ok thank you very much.. where would i find those fuses and the 1/0 wire Quote 2008 Dodge Avenger SE Pioneer 4300-UB Headunit DC 1.2K 10"DC Lvl 3 with Lvl 4 coil... 15" DC Lvl 4 JVC Arsenal 3-way Component set Link to comment Share on other sites More sharing options...
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