Whine in speakers from alternator???

[djstatix]

I can hear a faint sound of the engine thru my speakers when i drive. My installation can be seen in my profile is you would like to help.

Both my amps are grounded to the frame, and all audio cables are split down the drivers side/ passanger side.

How can i get rid of this sound!!!

 

[FexplorerV8]

god man i get the same **** when i have my dvd connected i hope we can fix this anoying noise look at my cardomain to see what i got

 

[410Fortune]

BATTERY CABLES
It is the ground.

It is likely, as long as the system is installed properly that you need new battery cables/terminals

Its not that hard of a job and I found everything required for fairly cheap is avail at West Marine (if you are a do it yourselfer wiring guy like me) otherwise you can buy replacement cables at the auto parts store. The - cable goes down to the frame and then continues on to the engine block. These connections are very important.


The signal wires (RCA) should not cross over any + wires during their run
The + wire (battery to amps) should not cross over any main + wires in the truck either.

these trucks are real sensitive to this, but it can be defeated.

 

[wired_af]

What kind of RCAs are you running? Twisted pair, shielded, ect..?

 

[BeauJ]

Could be the RCAs also. I tried everything in my old explorer. Ground loop isolator, mounted the directly to the frame after grinding it to bare metal, expensive RCA cables, but I could still faintly hear it. I said screw and just ran the ground straight from the battery. End of problem

 

[410Fortune]

Beau, I tried even that too, I tried grounding everything together, direct to battery holey moley I fought it forever, one day new battery cables and the noise suppressors/ground loop isolators, etc could all come off....no noise since.

 

[FexplorerV8]

filters work really good too but i will buy new cables for the battery soon

 

[DDEBEXP]

it is the ground and i believe that the whine actually comes from the fuel pump. If you upgrade ground wires, that should take care of it.

 

[matt987]

i had that problem before...it was because of low quality rca cables...i found that the cheap fix was to run your power wire on one side of the truck and the rca's on the other side....if the power wire comes too close to the rca wires it will cause static and the infamous whining noise....try that, it worked for me

 

[FexplorerV8]

thanks for all the imput this seems like somthing lots of people are getting after getting new systems...

 

[badash]

haha omg i thought i was like the only one with this problem i used an isolator (i think?) anyways its some little capsule thing that i plugged the RCA's into before the amp.. and it worked... im pretty sure its called an isolator..

 

[FexplorerV8]

i think they called it a filter where i bought it =]

 

[410Fortune]

Its a ground loop isolator
Or a noise suppressor

There are two kinds.

Though it may remove the fault or the whine, the system will sound better without them, fixed properly.

You can damage your amps, speakers, etc if you have a bad ground loop issue, noise, etc.

It can be fixed by wiring it properly, using good cables.

 

[FexplorerV8]

thanks 410 great info =]

 

[el shamrocko]

i had that problem before...it was because of low quality rca cables...i found that the cheap fix was to run your power wire on one side of the truck and the rca's on the other side....if the power wire comes too close to the rca wires it will cause static and the infamous whining noise....try that, it worked for me

I agree with Matt, this is the best way to run your cables... shielded or not. Power on one side and rca on the other.

 

[Saleen_SR71]

i got whine from my rear speakers (fronts arnt really noticeable). it all happened when i changed out my amps, ill figure out what it is after i reinstall the stereo

 

[410Fortune]

its a gound loop most likely There are lots of steps to take to ensure you dont get noise, especially in our Ford's

As mentioned run power wires on one side, signal wires on the other
Dont cross over any major power wires with your new RCA's or the power supply
Battery cables to frame MUST be in good shape.
ground you pick must be good, if it's on the body then the frame to body ground cables/straps should be upgraded or uin good shape/connected

Use good RCA's never skimp, good RCA's are EXPENSIVE, so be prepared to spend.
Keep your amps ground short and ground amps/x overs all together in one spot.
Seatbelt attaching bolts make a great place for ground.

All grounds to bare metal, of course, no paint.

The facttory explorer has a fuel pump noise suppressor built in (ground loop isolator), but when a system is wired up properly you should have 0 engine noise.

 

[Saleen_SR71]

well i was thinking of doing another ground, right now my ground travels about 8 feet (4 gauge) before grounding to a battery thats grounded to the body

 

[falls guy]

Make sure your deck and amps are hooked directly to the battery on your power wires. Could also be a sign of an electrical short somewhere in the system. eg.plug wires,wiring harnesses.etc.
Good luck.
Peace

 

[FexplorerV8]

bump