Whine help

[Protostar]

I used the search and took in some advice. I still cant fix it..

I took some people's advice from the board and found a new ground.

1) had both amps grounded to a screw in the trunk right next to the trunk. (whine)

2) changed the trunk ground and put them both to the seatbelt bolt. (still a whine)

3) have one going to the trunk and one going to the seatbelt bolt. (still a whine)

My conclusion is that it has nothing to do with the grounds.

I have a Rockford Fosgate 250.2 going to 2 Sony Explod 10"s.

I have a MTX 4244 4 channel going to my interior.

I have a Kenwood Excelon KDC-x915 HU that calls for a external amp... so i have the MTX amp.

I have noticed that whenever I plug in or pull out the rca's going to my MTX, the noise will get louder sometimes... sometimes it gets more quiet... I'm at a loss for ideas... can anyone help me out??

Aaron

Click to read more...

 

[GSteg 10+ year member]

then it must be the RCA's. most people will tell you not to run the power wire near the RCA. i don't believe it, but you can try if you want.

how long is your ground wire?

 

[nswartley 5,000+ posts]

sometimes its a faulty amp...you might need a ground loop isolator, its like 10-15 bucks.

-nate

 

[ASDF12345 10+ year member]

Originally posted by GSteg then it must be the RCA's. most people will tell you not to run the power wire near the RCA. i don't believe it, but you can try if you want.

 

 

how long is your ground wire?

maybe the RCA's. it seemslikely butthere are a few other things you may try first.

first re do all the remote wires. if it still happens get some extra RCA's and run them rightoff theback of the head unit throwem over the back seat and into the amp. just to see if it is in fact the rca's. if that stops the whine then its your rca's. now while replacing first take them out and hook them up ust like you did to test them to see if it was the rca's or the way they were run under the carpet etc. if you throw the over the seat and there is still a whine, you have faulty rca's.

 

[MikeofTulsa Moderator]

i'd suggest taking a look at the ground on the head unit.....and the seat bolt ground spot is a bad ground to start w/......but see about changing the ground on your h/u....usually helps alot

 

[avistar23 10+ year member]

well i had to do a few things, brand new ground on HU and noise filters on hu and EQ