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wiring an amp

wiring an amp

Postby josh_leonard81 [OP] » May 18 2017, 4:01pm

so im in the final stages of my sub install, but i wanna know the best way to mount my amp? I want to do it under the back seat, so could i Velcro is so it doesn't slide around? and also, for my ground wires, i have the frame ground up front connected to a bolt under the plastic engine bay cover piece, and my amps ground is connected to a backseat bracket bolt. are those good grounds? Thanks!
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Re: wiring an amp

Postby silentbravo » May 18 2017, 7:31pm

Velcro could work, if you get that 2" wide stuff it is extremely tough. Just consider if your amp needs airflow, you may want to mount it off the floor on some blocks or something.

For any ground to be good it needs to go to bare metal at least, so if the seat bolt is sanded down and your terminal is contacting bare metal it will probably work. Usually it is better to at least go to the floor though because the seat bracket itself is probably painted, and then the floor may also be painted so even if you sand the bracket itself there is still a paint barrier, which makes a very poor ground.

That frame ground in the engine bay doesn't sound good, have a picture of it?
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Re: wiring an amp

Postby BCZ71 » May 18 2017, 8:06pm

I've used the rear seat bolt in my last two trucks for ground, the paint was warn off under the nut and worked fine. I have a 500 W class D Alpine on the floor under the seat setting on the little shelf where the jack tools are mounted. I didn't Velcro due to having a down fire box setting in front of it. The box keeps it from sliding around.

As mentioned above, if you have a huge high powered amp you may want to keep it from setting directly on the floor. Shim it with something maybe.
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Re: wiring an amp

Postby Hook-UM » May 18 2017, 9:26pm

I normally use a .5 inch piece of MDF or plywood, cut to the size of the amp, and place the board under the carpet. Screw the amp into the board using .5 inch screws. This gives a secure mount and as long as the amp is not mounted upside down or touching the seat, you should'nt have any ventilation issues. For grounds, star washers are your best friend. :D
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Re: wiring an amp

Postby josh_leonard81 [OP] » May 18 2017, 10:53pm

silentbravo wrote:That frame ground in the engine bay doesn't sound good, have a picture of it?
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Re: wiring an amp

Postby josh_leonard81 [OP] » May 19 2017, 12:38am

Nevermind, i actually found a good ground behind the drivers side fog light!
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Re: wiring an amp

Postby silentbravo » May 19 2017, 2:06am

Good grounds in the engine bay are the block itself or frame. Could probably tie into the ones on the firewall too since they are ground strapped to the block as well.

Your new spot may be fine as well.
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