Another stereo whining question

**RedGTiVR6** · 02-05-2006, 12:59 AM

that tells me that you are getting induced noise in your speaker wire

you should check the runs....speaker wire shouldn't be running next to any electronics...that's if it's just a hum

does it vary with the engine RPM at this point?

**Will Albers** · 02-05-2006, 11:23 AM

He has a built in amp. I have never seen speakers pick up enough interference to cause audible whine. That just requires too much amplification to hear. Somewhere he has a stock amplifier. I would disconnect the wires at the speakers and toss some new speaker wires over the seats. Test a direct connection.

I'm betting my 50 cents that the installers never bypassed the stock amplifier!

**Legarcondemerde** · 02-05-2006, 11:34 AM

Hmm...I definitely agree with Will, that would certainly cause some noise issues if the lazy bastards didn't bypass a factory amp. What kind of car do you have?

**RedGTiVR6** · 02-05-2006, 02:22 PM

if they didn't, I'd take it back and throw a fit!

**fewman** · 02-05-2006, 02:31 PM

I honestly don't think there is a built in amp. It's an 2005 elantra gt. I will look it up to see if it has a built in amp. Where would it be (usually)? The whining does go up with RPMs, and does not exist when the amp is disconnected. I will test a direct connection between the amp and the speakers later today.

**RedGTiVR6** · 02-05-2006, 02:33 PM

I'd see about a different amp then

do you have a friend with one you can swap in for a few and check?

**skadoo323** · 02-05-2006, 02:46 PM

i had a ground noise problem as well wit my setup, which goes from my carputer's speaker out jack to an aux input device for my stock head unit. the humming sound would increase with the rpm's. i moved some wiring around(kept all the power wires on side of the car and all the speaker wires on another) and this helped a bit since the humming sound decreased dramatically. Eventually I forked up the $15 for a ground loop isolater from radio shack, which took away the humming sound all together. it was a good $15 investment.

**fewman** · 02-05-2006, 02:52 PM

I think I will try a different amp, to see if that's the problem. Skadoo, read the whole thread next time please. I've said twice that I have ground loop isolators installed.

**Legarcondemerde** · 02-05-2006, 03:05 PM

While you have the amp out, get an ohmmetter and check the impedance of the speakers. If they all read about 4 ohms, then you definitely don't have a factory amp.