Yellowtop
98RRover with all the audio you're using (show stuff) you definately need an Optima Yellowtop, and as mentioned probably two. Then you'll never have to worry about running your stereo with the engine off. Should just crank right up after a good couple hours of jamm'n.
And for others out, they're great for external fog lights/rack lights , winches, and other accessories that drain the battery.