All righty then;I got the speakers and rings and I am ready to go!One last question;how much room is behind the panel? My rings are 3/4" and the speakers are the Polk401's which require a 2" mounting depth if I measured correctly.So for my sound system I have-Polk 651's in the doors,a Kenwood dpx-503 headunit with the colors set to match the insturments,the under-dash sub and a MTX 702 amp.I am looking for a CD changer to mount under the driverseat since the OEM sub is gone,any suggestions?