GokuZ06Roc

I tried regrounding the amp and that didn't seem to work (grounded into passenger seat now) also the driver side seats are power and is grounded on the driver seat bolt....I installed a new light in the dash but that had been grounded within the light system any suggestions? i think it might be the power seat or the lighting system because the amps seem to do a small popping sound when i either turn the lights on or play with the driver side seat..

DVL86

Make sure your wires are shielded properly. The popping noise could be coming from the alternator. Does the noise increase with engine load?

9177

Try to get a better ground for the HU and also upgrade you underhood wiring. Do a search for the Big 3

GokuZ06Roc

Noise does not increase with engine load....it's actually loudest when the engine is turned off...and just in the run position...it almost sounds like my gains are like super high but I'm only at about 1/2 and if i set the gain higher it sounds almost like standing next to a huge loudspeaker..wierd....it started i think when i put that new light in but i dunno....

DVL86

Noise DOES increase with engine load if that is the interference.

GokuZ06Roc

I don't think it does but i wouldn't be able to hear it anyways my car is super loud. but still i'm gonna check those things and i'll get back and see if anything works

NEEDAZ

Make and model# for the HU AND the amp?

GokuZ06Roc

Pioneer DEHP47 and the amp is one of those baja amps it's blue

NEEDAZ

Possible bad ground IN the HU. Do you have an VOM/DMM (ohm meter)? Do you know how to use it? It's easy to rule out the HU. Check the resistance from chassis ground (of the HU so use the case) to the RCA outputs ground (the outer ring of the RCA jack). Should be low, like less them 2 ohms.

GokuZ06Roc

Well it's actually only doing it for the subs which are wired off the amp...My other front and rear speakers are fine...but the Subs is where i'm gettin the buzz but i'll check just in case...

NEEDAZ

That's exactly what you would expect. If you're powering the front and rear speakers off of deck power, the bad ground at the RCAs would only effect the speakers powered by the amp getting signal from the RCAs (the subs).
Is this how you have it wired?

I should add this wasn't as common with the DEH-P47 as with other models, but not unheard-of.

GokuZ06Roc

So your thinking it's the headunits ground or the amps ground? I mean I'll try to reground the headunit and see what happens i mean i did ground it to the factory wiring but i'll give it a shot

Saigon_Bob

iTrader: (2)

he means inside of the headunit itself not the HU to the car

NEEDAZ

What he said.
And it may not be the problem, but if you have a DMM and know how to use it, it's easy to test for. And it's not a bad idea to know how to use a DMM anyway. Anyway, like I said you should to checking the resistance from the chassis of the radio (the case) the outer connector on the RCA jacks. If you know how to use a DMM it's quick and easy to check out.
If you don't know how to use one we can help with that too.

GokuZ06Roc

ah i gotcha ok lemme check with the ohm meter and get back i should've thought about that before....I'm not totally great with electronics yet....just a beginner

GokuZ06Roc

o and what happens if it's the headunit itself?

NEEDAZ

Worry about that later. Find any thing yet?

GokuZ06Roc

Alright well I reground the amp...that was a no go....I did take all the bottom dash junk out....and i have found 2 wires that look as if they've been cut.....down by the lower driver side kick panel...My dome light has never worked... and i think that this might be it as far as maybe something giving a bad ground....because isn't the headunit connected to the lights also just so it can light up? I'm thinking that maybe these 2 wires might be messing it up because they are live wires....hmmm time to disconnect the battery again and get these wires back together.

napalmdemos

I have the same problem. But mine is coming from just the 6x9's not my subs. Mine is a pioneer deh-6600. Let me know if you figure it out.

NEEDAZ

napalmdemos: Check the grounds at the RCAs like I explained above.

GokuZ06Roc: Anything yet?

GokuZ06Roc

lol i found the problem.....i dunno how this happened but.....the amp is grounded at the passenger side seat bolt....my amp is a little larger but it just touches the other side of the seat the case of it.....so what i did was put 2 pieces of rubberseal between the seat and the amp and no more buzz....that is the weirdest thing ever i dunno lol

NEEDAZ

Amp chassis should NEVER come in contact with ground. Even so, if it made that big a difference, I'm thinking there is still a ground problem in the system some where. You've got it covered up though.

GokuZ06Roc

yea i dunno....it might be those wires from the dome light that are live maybe it's buzzin the chassis or somethin i dunno....anyways I wish it was easy to do electrical stuff in cars...it's a real pain...

napalmdemos

I took the RCA's cables off and turned the car on and still get a popping noise, so I can rule out the head unit. The amp is grounded at the rear shock, checked it and it was good and tight.
All of my power wires (4 gauge and 8 gauge) are ran down the drivers side, and both RCA's are ran down the passenger side.

I even switched out the amp with a new one today just to see if the other one was bad and still same problem.

I wonder why my amp for my sub hasnt had this problem though?

GokuZ06Roc

hmmm i dunno i hate cars lol if it's not one thing it's another

xlwhellraiser

iTrader: (1)

Ok, I just went through a setreo and amp install and I found few problems. If you are buzzing make sure you are not running the RCA cables with the power and remote cables. This creates buzz. I took mine away and minimized it totally. Also, make sure you have some solid ground for your AMP and the DECK. I can not stress enough how important that these wires are grounded solidly. If a problem presists take three of the metal rings or washers and make sure you screw them on top of the wire. It helps the ground. Best ground is ofcorse the body. Also, dont bother buying the little instruments that kill the noise cuz they just lower your amp and dont work worth a crap.
If everything looks good make sure everything is set up correctly cuz one + connected to a - messes everything up. If everything else fails make sure your AMP is in good condition.
Let me know what happens.