White noise/hiss w new Wetsounds gear

So upgraded my system after my stuff was gangstared.

2 Wetsounds Syn 4 amp
Pair Wetsounds Rev 8
4 Polk Momo mmc coax
Polk 12 sub
Alpine CDMA 9886m head unit w 4 volt preamps.
Wetsounds 420 eq

I had bullet 6.5Hlcd before so was just enough not near poweri have now.

I have all my stuff grounded and powered to distribution blocks (0 GAUGE TO 8 GAUGE) including head unit and eq. The gains on amps turned down and new eq doesnt have gains on it. The tower speakers have a small noise like a white noise/radio station coming from them. I have taken all the rca and isolatedd the amps and noise is still present no matter which amp is hooked up. I have hard wired and bypassed the eq and noise still there. The only time it is gone is when i disconnect the output rca'S from head unit,but leave all the rest of stuff running.


I have read some noise is acceptable but also read its not. I have read its most likely gain issue but my gains are barely turned up. Wven turning them to zero its still present. I havr swapped head units as well and its still there. I have been chasing this for 3 days. Any input would be appreciated.


Sorry for typos. On my cell