Re-grounding an amp

[Mike437 10+ year member]

So after much discussing i need to re-wire my amp. right now it is grounded in the trunk using a spider screw/nut but is just touching the paint. I need to remove this and then scrape the trunk bed to expose bare metal. Do i need to disconnect the negative on my battery under the hood if i want to do this? I mean i just want to be safe when i do this, mind you i did not install my amp but the guy who did, did not ground the amp properly. So before i disconnect the ground on my amp, should i disconnect the ground on my bat? or anything else i need to disconnect?

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[mapolley07 10+ year member]

you should always disconnect the negative battery terminal when you do ANY work on a car, especially electrical.

 

[ultimate157 5,000+ posts]

Pull the fuse from your inline holder, or disconnect the - terminal. Whichever is easier.

you should always disconnect the negative battery terminal when you do ANY work on a car, especially electrical.

Agreed

 

[azbass 5,000+ posts]

x2 pull your inline fuse out, reground, put inline fuse back in.

recheck.

 

[Mike437 10+ year member]

x2 pull your inline fuse out, reground, put inline fuse back in.
recheck.

sounds good, thank you guys for your help. Will post new pics once i get everything squared away: speaker wire, power wires tied back in the trunk/hood, re-ground everything, and possibly new optima battery to make the type-r's and my hyundai more happy lol.