i've had my 2 amps in my car for a long time .. and never had a problem ... i recently mounted them on to my sub box and disconected the power from one of the amps in order to do it ... and now once i reconnected the amp back up , both of my amps power lights are on constantly. even when everything is off. it is not the remote turn on wire . i checked that. it is somthing else. any ideas ?