Engine Whine

[Z4CK 10+ year member]

Hi everybody, I got my amp installed yesterday at Car Toy's and I noticed I had engine whine when driving around. I told them about it and they put filters on the RCA cables. I drove around and I still have it. He told me my amp was bad and that was the reason it was making noise. The noise gets worse with higher RPM. I have a MB Quart DSC 480, Kenwood x693, and knukonceptz wiring. I just want another opinion, is my amp bad or did they mess up the installation?

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[Louisiana_CRX 5,000+ posts]

Thats was a bonus audible tachometer from your top notch installers at Car Toys...it was free gift.... //content.invisioncic.com/y282845/emoticons/present.gif.046205b11bb0957af93450bd4cc53e1b.gif

 

[Z4CK 10+ year member]

Thats was a bonus audible tachometer from your top notch installers at Car Toys...it was free gift.... //content.invisioncic.com/y282845/emoticons/present.gif.046205b11bb0957af93450bd4cc53e1b.gif

How can I fix it?

 

[nateberrier 10+ year member]

Lol Crx. You'll want to make sure your head units ground is directly to the chassis and not through the harness. You can also ground your rcas to the radio. Strips som wire and wrap it around your rcas then unscrew a screw on the radio and fasten the the wire between the screw and body of the radio. Also make sure they grounded your wires right, ie to a part of the cars chassis not a fender. Also make sure the sanded it and have it secure. Read around for more info or message me I guess. I'd write more but I'm on my phone and I'm tired.

 

[Z4CK 10+ year member]

Head unit is grounded well, I did it myself and they grounded the amp well as well. Do you really think I need to ground the RCA's? Also is there any truth that the amp is causing the problem or did they install it badly?

 

[Horsemanwill 10+ year member]

FIRST lets find out what's causing the noise. if you take the rca's out of the amp does the noise continue

 

[jrouter76 10+ year member]

Not to thread jump,but I`m in the same boat even grounded the hu straight to battery(neg) next option would be to ground rcas any ideal how to properly ground ing the rcas?

 

[FenixAudio 10+ year member]

FIRST lets find out what's causing the noise. if you take the rca's out of the amp does the noise continue

Good question. Also just to be sure did they actually run the rcas opposite the power wire??

 

[FenixAudio 10+ year member]

Filters are band aids..I've put in hundreds of 4ch amps and only hhad problems witbh bad amps a couple times....mainly rockford 4chs..300.4 kills me

 

[Phoenix Risen 10+ year member]

jrouter read nates post, there is your answer, and grounding the rcas is usually the fix when your getting engine whine.

 

[Side Show 10+ year member]

^^ 10/4 on that

 

[FenixAudio 10+ year member]

Not if the power wires run on the same side of the car as rca

 

[helotaxi 5,000+ posts]

Not if the power wires run on the same side of the car as rca

Horseshit. I've zip-tied my RCAs to my power wire in my last 3 installs without even a hint of noise. Grounding RCAs is a band-aid as well.

One of the components (amp or HU) isn't grounded as well as you think it is.

 

[FenixAudio 10+ year member]

Horseshit. I've zip-tied my RCAs to my power wire in my last 3 installs without even a hint of noise. Grounding RCAs is a band-aid as well.
One of the components (amp or HU) isn't grounded as well as you think it is.

some amps are better then others with noise. and it does matter. i have taken out an fosgate with noise and replaced it with an alpine and no noise. RCA quality matters also.

and all because you have done that doesn't make it right.

if your battery doesn't filter the ac ripple it will send it through the power wire.

 

[tc300 10+ year member]

id check the grounds on the amp first....