Help!! I can't get my subwoofers working on my mach 460 system. I have 5volts on the 3 wire connector goining into the amps I know all speakers work tested them all. Does any know if there should be 5 volts on the gray connector? I have 5 volts comming out of the head unit. Any help would be graciously accepted.

 

try here www.mach1registry.com, All Mach1s came stock with those and theres alot of database on it.