question on running a relay

[danz24 10+ year member]

Im installing a relay for the remote wire for the amps. Is it possible to connect the + and - of the relay to the batt +and - of the amp terminal?

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[danz24 10+ year member]

im sure someone out there is willing to help...

 

[acold7dusta 10+ year member]

so you're looking for an ignition wire? what vehicle do you have? do you have an aftermarket head unit?

 

[danz24 10+ year member]

vehicle is a 98 cavalier, Hu is 880prs

My amps are at the rear of the car and was wondering if i can use the positive and negative of the amps to power the relay

 

[acold7dusta 10+ year member]

misread the question, what do you want to power up piggy backing off the amp?

you could do something small like a neon, or something that draws little power, but if its to power something like a tv or something, run a seperate power/ neg

 

[creyc 10+ year member]

sure can if its a 12v relay. Make sure you use the right terminals of the relay!

 

[creyc 10+ year member]

Yea just use the amp + and - to trigger the relay. Get the actual power elsewhere.

 

[Motovet 10+ year member]

Yea just use the amp + and - to trigger the relay. Get the actual power elsewhere.

??? Power elsewhere? I plan on doing the same thing to power my processor and a relay....though I had no problem powering three amps so far off the HU remote. Why not steal power where it's available.

 

[helotaxi 5,000+ posts]

Yea just use the amp + and - to trigger the relay. Get the actual power elsewhere.

Learn what you're talking about before posting.

Yes you can hook the + and - up to the terminals of an amp. That will give you power to the relay. Use the remote on wire on the trigger terminal to switch the relay. As said above, I wouldn't power anything very high draw off the relay like this, but for a couple of fans, remote ons for the amps, some LEDs or the such it should be just fine.