Recommendations for a pair of rear speakers?

[JoeP]

My RSA came with two storage boxes instead of rear seats.  The prior owner installed a three-way component system with a tweeter up high on the door, midrange down low in the door, and an 8" woofer in each box.  It's waaaaaay better than anything I tried in my '87 -- even an aftermarket rear panel with 6x9" speakers.  It's not boomy.  The bass just seems to go down to zero hertz. 

I heartily recommend this route if you don't use the rear seats.