ive done the mega el-cheepo.
i disconnected the rear speakers and wired a pair of home midi system speakers that i had sitting around the house, and sat them in the rear passenger foot wells, and pushed the front seats back to hold them in place. then tuned the the stereo to 8% rear and 2% for the factory front.
works a treat!! altho i took the rear seats out of my D1. so no rear foot space required.
cheers.
dave.

