I went to Best Buy and bought a couple of 100 watt Pioneer speakers that were shaped kinda like fat zuccini squash. Think that they were meant to be set on a rear window shelf. Guess that they were about 8 inches long and four inches in diameter. Hooked the wiring up to them and kinda squeezed them into the cab corners on either side of the seat down towards the bottom of the cab corner well. Sound is great, each person can get totally blasted if I crank the radio up.
