alright i have tryed 2 times already so its annoying the hell out of me i tryes wiring up a second amp (400watts peak 4 channel) to my 2 6X9 in the back that r rated at 260 watts max each so its good. i wired everything up correctly well to my knowlge and when i turn the car on i hear the altinator threw the speakers or if the car is off and i pop the trunk or slose the windows i hear that motor in the speakers y the hell is it doing this and im almost positive its not the ground cuase i tryed to difffrent spots one where the ground is for the other amp and the other plase i just ran a wire from the battery ground to the amp but it still did it........is there a diffrent way i could wire my speakers to the amp to stop this?

 

yeah, check the ground on the radio.
that's where the amp's getting its signal from.
- Andy

 

but how come if it is the ground on the headunit y doesnt it make the sound when i dont have an amp?

 

well i did try and change the ground for the radio but still the same thing i put the ground to the negitive terminal on the batery and it still did it

any more sugestions?

 

your RCA cables could possibly have a bare spot where the wire is touching metal, Just an idea.

 

tryed 2 diffrent types of rca cables and it did it both times and i treyed wiring it with the rca cables not touching anything except the seats and it still did it

 

i know this is probably going to sound stupid and plese dont be insulted by this but try pluging the rca cables into a diffrent channel and see if it works

 

i did that already

i think im just giving up on this

 

Is your rca's and your power cable ran on the same side of the car, if they are seperate them.

 

yeah they r on seperate sides of the car

 

you can buy some sort of engine noise zapper ever think of that?

 

the "Zapper" your reffering to is a ground loop isolator.. mine cost about 12 bucks.. however i've also found that with my system i've got a few amps.. been thru a few over the years.. only time i here altenator hum/whine is with cheap/old equiptment.. i've got 2 jensen amps.. 400/4chan 300/2 chan had a pyle 600/2 none of that whined. had a roadmaster eq 100 watts whine and an old alpine 80watt amp.. that whined also.. a ground loop isolator may be your best bet.. also.. where you do you have your ground runto?

 

inside the pannel where the spare tire is i sanded the metal and mounted it there

 

i ran my ground up behind the back panel where the trunk motor is.. bolted it up in there.. maybe you could try there? has anything gotten better or worse?

 

let me guess... you ran the power cable in your car from the battory to te back by the firewall and then across to the driver side of the car so the power cable is beng ran by the wireing harness and right by the HEI system right??

 

What kind of amp is it? This makes a big diff. If you have decent quality parts with good grounds and other connections it shouldn't matter where you run your wires. Also what kind of HU are you running?

 

Did you say that your ground is ran from your battery to your amp? Try shortening the ground. And like someone else said...if you went from the battery, up the pass. side of the engine compartment, across the back of the engine compartment to the drivers side, try going to the front of the engine compartment instead...going over the distributer and other things like that might be causing a problem w/ it...I never had that problem, but some people have...also, check the ground on your altenator. Could neva hurt. If nothing else, maybe your amp is screwy.

 

why dont you just sand off some paint around the tail light bolt and ground it on one of those bolts.the longer the ground wire,the more chance you have of getting interference.and absolutely DO NOT RUN A GROUND WIRE TO THE GROUND ON YOUR BATTERY.
and for all of you se3genners out there.my experties comes from working at sound advice.(repairing mobile cd players)