Whine problems

Here are my components (all used but in great shape):

Clarion ARX6470 Deck 

Clarion Rdc634 6 Disc ChangerClarion

Clarion Eqs750 Equalizer

(1) Eclipse 3520 2/1 Amplifier for front spkrs

(1) Eclipse 3525 2/1 Amplifier for rear spkrs

(1) MBAcoustics 600w 2/1 Amplifier for (2) subs

The deck is ran to the Eq and both Eclipse amps are run from eq. The sub amp is run direct from deck to amp. I have rca inline ground loop isolators on the jacks from the deckto eq input and a noise isolator on the power amp wire which is run from the battery. With the engine off i have no noise, with it on you cannot hear the stereo for the whine.HELP!! If you need other details let me know.

• Run all RCA cables on opposite side of the power wires and speaker wires.
• make sure that your alternator is in good working condition. If the alternator is not powering all the connections properly you will get a whine
• Make sure that you have a solid , clean ( paint free ) ground. Watch out that you do not ground on a panel or sheet metal. Try to ground it to the frame of the car/
• Make sure you are using at LEAST 4 gauge power wire and 4 gauge ground wire for your system
• Post your results

 ok Jeff check it out:

I pulled everything out (EVERYTHING) and connected front and rear spkrs direct from head unit and used the MBAcoustic amp to the subs out of the head unit rca jacks....and i still have whine.very low but it is still there...now my question is this..My head unit is grounded to the metal casing it fits in in the dash...should this be grounded to the frame also and is it acceptable to run one heavy gauge ground from the frame and bring all the component grounds to this....Thanks again for your help.

run the radio ground to the chasis metal and that may solve that problem. your question on multiple amp wiring, well the best way is get a ground block and run one 4 guage wire to ground keeping this short as possible. Now take an 8 guage from each of your amps and run it in to the block also as short as posible. also when grounding anything scrape the paint off the spot where you will be grounding make nice and shiny you can use a flat screwdriver and a piece of sanpaper to do this.

Hey Quick,

You think you've got whine problems?  I have two daughters!  Man talk about whine!!!!!!

OUCH !! 3 women in one household !! OUCH !!

I feel your pain Big Dog.

Hey Jeff you think that maybe cheap RCA's might be a problem. I had a similar problem when trying to use cheap RCA's.