All I have in the back well is this stupid empty space to put crap..

It's the pocket that you want, my friend! You need to get yourself a stealthbox that will drop right in there - goto JLaudio and check it out - Take a look at the site, and let me know - you should have an empty pocket on the back passenger side of the cargo area... please tell me you do!

Using the Alpine as the "mains" as it has the triple pair 4v outputs, and the tuner.. I have 'defeat' on so that the empeg still utilizes the 20band parametric eq, and the Alpine just acts as a pass through and crossover for the signal. I highly recommend the stealthbox, great sound, not boomy, no rattling - just good solid base... yea!