whine noise after deck install.

muddybear · Post by **muddybear** » Tue Jun 07, 2005 6:50 pm

another thing. aside from the engine noise that comes throught the speakers when the car is running. theres a slight whine when the car is off. and the sound almost sounds like its coming from the deck. almost like its amplifing the sounds the deck makes. For example, with a CD in the deck and the volume at zero, and when I change tracks, it sounds almost like a record player switch to the next song.

William from NOLA · Post by **William from NOLA** » Tue Jun 07, 2005 6:53 pm

It sounds like one of the RCA's is touching metal somewhere or such. Make sure they aren't touching anything they shouldn't or have been split open anywhere.

muddybear · Post by **muddybear** » Tue Jun 07, 2005 7:29 pm

i don't think thats it since I can plug in any one RCA and it will do it. It doesn't matter which RCA I plug in, or which channel to the 4 channel amp. just one RCA into the amp and it starts making noise. i Doubt all the RCA's are bad or touching metal. also i did not have this problem with the stock deck.

JeremyC · Post by **JeremyC** » Wed Jun 08, 2005 12:24 am

Try disconecting the rca's at the headunit and leave them conected to the amp. If the noise goes away try swapping out the deck .

nightcrawlaa · Post by **nightcrawlaa** » Wed Jun 08, 2005 1:10 am

are your rca's ran on the same side of the car as your power wires(sometimes engine noise can can jump from your power wires to your rca's if they are to close)

muddybear · Post by **muddybear** » Wed Jun 08, 2005 9:11 pm

well, I picked up a ground loop isolater today for $20. before I pluged it in I tried ground my amps to the same spot, double checking all my speaker wires, switching RCA's around. no change. then I pluged the Isolator into channel one and the sound is gone and everything seems to be working fine.

Except for a small prob. with the volume at zero, there is a very slight hiss coming from the tweeters, I credit this to my crappy american legacy amp. soon to be replaced with JL audio.

now I just need another Isolator for the rear.

muddybear · Post by **muddybear** » Wed Jun 08, 2005 9:29 pm

oh yeah, thanks guys for all your help. I wouldn't have made it this far without reading through this forum. I'm still a newbie to this audio stuff.

JeremyC · Post by **JeremyC** » Wed Jun 08, 2005 9:47 pm

No problem man, thats what we are here for.

Ryan from Ohio · Post by **Ryan from Ohio** » Thu Jun 09, 2005 3:26 am

Glad a GL Iso helped.

I was going to sugguest to run another set of RCAs to just test that...

muddybear · Post by **muddybear** » Thu Jun 09, 2005 5:08 pm

is that kinda normal to have a quiet hiss coming from the tweeters at zero volume, when powering them with an amp?