When my subs sre oni get a ton of noise coming out of the subs.
What is the problem and how can i fix it
Thanks

 

reground the the amp, check the connections on the RCA.

 

run another "remote turn-on" wire.... but don't connect it to the remote turn on connections. Run this wire from the chassis of your radio to the chassis of the amp. What this wire will do is carry any potential voltage difference between the two, rather than your RCA's carrying this voltage. When the RCA's carry this voltage, it causes noise. Re-grounding your amp can also cure this, but not always.

Those RCA filters do pretty much the same function, but instead of connecting the two grounds, it uses an audio transformer to block the DC flow (since DC can't pass thru a transformer)

 

where on the headunit and then i put the other end where my ground is now

 

you can attach an end and use a screw found on the radio's chassis (or the spot in the rear where the "peg" can go into the radio.

 

 

You may want to run a 2ga or 4ga ground cable directly from the battery. Chassis', especially if they are old are not the best conductors. Basically, you want to ground the HU and amp as close together as you can. Like others said, connect a ground to your HU's chassis - or better yet, connect it to your HU's ground wire.