my towers pop if the volume is up and i turn off the stereo switch, is this normal or a result of a bad ground as well?
This sounds like a turn-on/off timing issue. Are you running a head-unit or is your music source connecting directly to the EQ? If running a head-unit, is it triggering the WS-420 to turn on via the orange turn-on wire or is the dash mounted rocker turning the SW-420 on at the same time as the head-unit?
dash mounted rocker i believe
The WS-420's Red B+ and GND need to share the same battery source and the head-unit and amp. The WS-420's orange wire needs to be powered by the head-units blue-white turn-on circuit. This insures the best turn on/turn off timing.