What causes engine noise thru subs??

[Boomin_tahoe 5,000+ posts]

And constant sub rumbling, even when the engine is off??? I cannot figure this one out and its driving me crazy as well as annoying as heck.

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[revrider1 5,000+ posts]

Bad Ground

 

[rippinitup7 10+ year member]

most likely your ground. could also be your rca cables.

 

[revrider1 5,000+ posts]

Is it constant, is it the 6500D in your sig thats doing that?

 

[qtipextra 5,000+ posts]

As said earlier, most likely a bad ground, but also could be RCA's, a cheap pair, or rubbing off the rubber coatings to induce noise.

 

[revrider1 5,000+ posts]

I am thinking your RCA,s, I have had that problem before using MTX amps...

In the same model vehicle also...

 

[dleccord 5,000+ posts]

are you using any rca y splitters? if so, they could be touching the frame, as mine did. i just use the wire loom for it and its gone.

 

[Boomin_tahoe 5,000+ posts]

Is it constant, is it the 6500D in your sig thats doing that?

Nope, my 81000D. And thanks all for the replies....I will search for a better ground. dleccord, the answer is no. Just the amp, linedriver, and HU....nothin else.

 

[revrider1 5,000+ posts]

Try grounding the RCA's

 

[supraman1379 10+ year member]

I would check the ground and the rcas. You will most likely find the problem in one or the other.

 

[revrider1 5,000+ posts]

My MTX amps had that problem and I solved it by grounding the RCA's

 

[Boomin_tahoe 5,000+ posts]

Ok I've heard of grounding RCA's before....how is this done????

 

[revrider1 5,000+ posts]

Get a little piece of wire, strip both ends shove one in with the RCA's and the other on a ground screw, there should be one on the rear of the deck.

 

[AlpineUser 10+ year member]

check the RCA inputs they might be coming out....happened to me when i put my system in....the wires pulled them partly out so it caused feedback when you switched songs and such

 

[Boomin_tahoe 5,000+ posts]

Just love troubleshooting....I'll give those ideas a shot.

 

[revrider1 5,000+ posts]

I am almost positive its your RCA's needing a ground...

 

[shooked 10+ year member]

i had the same problem with my system about 6 months ago. it was my rca jacks on the h/u they weren't grounding right. i used a piece of wire and put it on the outside of the white rca cord then grounded it to a h/u screw.it worked but then finally just got a new h/u.hope it helps.

 

[revrider1 5,000+ posts]

i had the same problem with my system about 6 months ago. it was my rca jacks on the h/u they weren't grounding right. i used a piece of wire and put it on the outside of the white rca cord then grounded it to a h/u screw.it worked but then finally just got a new h/u.hope it helps.

Thats what I am recomending him to do, that should take care of it...

 

[Boomin_tahoe 5,000+ posts]

Just a question....who came up with the idea of grounding RCA's and why does it work and why it is necessary??

 

[revrider1 5,000+ posts]

I reall dont know, but it works. I have a friend who has a local car audio repair shop and he is the one that told me this a few years ago...