I have this nasty whine from my speakers on my accord after I hooked up my stereo. I've tried different ground points and everything but it won't go away. Any suggestions?

Alpine HU
Crossfire 150x2 amp to JLw3 15
older apline 50x4 powering the speakers

4 AWG running from battery

 

it whines when u drive ur car right, u might need to get the filter to block it off, some car does that due to poor wiring or ground i could be wrong.

 

run power and rcas on different sides of the car?

 

When I had this problem I noticed it was when I had two sets of RCAs run to the same amp. Using only one pair of RCAs, and using either Y cables or if the amp has a switch for using only one pair.

Worked like a champ in different cars with different amps!!

 

Ground loop. You do not have a good enough ground. It is pulling some of it from your RCA's. Check you ground to your amplifier and other components, including the deck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">Ground loop. You do not have a good enough ground. It is pulling some of it from your RCA's. Check you ground to your amplifier and other components, including the deck.</TD></TR></TABLE>

^^^ listen to him...

 

I am using 4 AWG to ground the amps. I tired the same location, and I also tried different locations. On the deck I tried using the stock ground location, then I tried to the chassis, and finally directly to the battery. The power and RCAs are run on different sides of the car. This is so frustrating!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stupidcomputers &raquo;</TD></TR><TR><TD CLASS="quote">I am using 4 AWG to ground the amps. I tired the same location, and I also tried different locations. On the deck I tried using the stock ground location, then I tried to the chassis, and finally directly to the battery. The power and RCAs are run on different sides of the car. This is so frustrating!</TD></TR></TABLE>

Where is the 4 AWG ground connected to? Chassis ground? How large of a contact patch do you have and is it bare metal? Got any picks? You might also try cleaning up the ground that goes from the battery to the chassis. Upgrade these cables as well is an option.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">Ground loop. You do not have a good enough ground. It is pulling some of it from your RCA's. Check you ground to your amplifier and other components, including the deck.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">Ground loop. You do not have a good enough ground. It is pulling some of it from your RCA's. Check you ground to your amplifier and other components, including the deck.</TD></TR></TABLE>



I started to ground off of the seat belt bolts, no whine

 

use a dremel or file away like a bitch at the point where your ground is to make sure there is *no* paint between the chassis metal and your ground terminal.

If that fails, you can try running a smaller guage wire (18 or something small like that) from the chassis of the amp to the chassis of your radio. This way any current difference will travel up that wire rather than your RCA's.

(or you can get an "RCA FILTER"... which is nothing more than an audio transformer seperating the DC path from your amp to your radio. The transformer still allows the AC signal to travel, but blocks the DC ground path)