Help me decide on some rear fill 5 1/4 midbass drivers. I have CDT EF components getting 160 rms each in the front, and the rear fill would be run off my HU that only puts out 19 RMS. co-axials dont clear the door panel, so i think mid bass driver would be the best way to go. P.S. i also cant afford another amp so the rear fill would have to run off the HU.. Thanks in advance Audiophiles.