Mike, that's along the lines of what I want to do. However, instead of using a flat panel, I was going to bulge it out in the middle by the wheel wells with both ends narrowing to the original panel mount points. This would serve to aim the speakers forward a bit, and leave room to mount a 12 inch sub woofer in the rear. In the middle by the wheel wells, I would build a hinged storage compartment, with maybe some drink holders on the top for the rear passengers. This would also remove some of the road noise from the rear tires. Just a few thoughts I had anyways.
Too bad my wife says I have to finish the wood working on my basement project before I can work on the Blazer.
