i had a small voltage gain when switching from full length to rear ground.I wasn't getting much voltage drop at the amp using the frame ground.However things may change.With the old setup I was getting some killer impeadance rise(probably from the box) so the current draw wasn't tremendous.But I think with the bigger box that might change a little.Has anyone noted any differance when switching from a frame ground to a full length?
Keep in mind I will also be running a battery bank in the rear of the vehicle as well as the sock battery location.
always been the opposite in my experiencei had a small voltage gain when switching from full length to rear ground.