Engine whine...cant shake it

[mrmex 10+ year member]

Ive done:

rca grounding on head unit.

swapped rca's

grounded head unit and amp at same spot

shortened amp ground to one foot or less

If i remember correctly i did not have whine until installed inline fuse before fuse block or swapped amp? could it be one of these?//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

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[bad @SS chevy 10+ year member]

Do a PICO fuse search .

 

[$ Big C $ 10+ year member]

is it coming from the engine?

 

[richierich75 10+ year member]

Ive done:rca grounding on head unit.

swapped rca's

grounded head unit and amp at same spot

shortened amp ground to one foot or less

If i remember correctly i did not have whine until installed inline fuse before fuse block or swapped amp? could it be one of these?//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

seperate your hu ground and amp ground - make sure all grounds are free of all dirt and paint.

not sure how you could have shortened the amp to less than 1 foot if you grounded it the same spot you grounded the HU

 

[mrmex 10+ year member]

yes from the engine...modulates with rpm's

the ground from the hu is long, 3 feet or so.

 

[hoxie08 5,000+ posts]

which side do you wear your wallet on?

 

[zeuolaxxx 10+ year member]

http://www.caraudio.com/forum/showthread.php?t=290359

 

[$ Big C $ 10+ year member]

Have your alt checked

 

[casper97ta 10+ year member]

You could try grounding your amp and headunit up to the front battery.

 

[mrmex 10+ year member]

Update!

I had the pioneer headunit serviced for pico fuse, same ****!

If i disconnect one of the rca's on the amp the whine goes down in volume but still there. Could the noise be from the amp? I got it used from here, an MTX road thunder..old black version.

 

[loudaccent 10+ year member]

ive had 3 pioneer head units in a year and a haft,, there just really toutch y, i just go to wall mart pick one up but the bad one in the box, return it, get your momey and the broken one if off to the factory

 

[dman4486 5,000+ posts]

check and recheck the grounds to make sure they are proper, then ground the rca shielding.

edit: my pioneer had that issue, and I did the resistor mod.

 

[dman4486 5,000+ posts]

 

[mrmex 10+ year member]

Really thats some **** that you have to mod a brand new $300 piece of equipment just to get it to properly working order. It should work out of the ****in box.

So what are the details on this resistor mod?

Also how do i ground the rca shielding ?

I guess i can search, ill post up again if i dont find anything...thanks dman

 

[dman4486 5,000+ posts]

start by wrapping bare wire around the rca outputs on the back of the unit and then attach that wire to the case of the unit...let me find a pic