I have the same one I bought back in 2005, main thing is wiring and buy "radio noise filter" it is actually a voltage filter (capacitor) and prevents voltage spikes from hurting the box.

2000 Dakota R/T, 408 magnum, 727, Indy heads
1000cfm 4150 carb, 93 octane fuel.
motor; 10.258 @ 132.78
200 shot; 9.262 @ 144.69
racemagnum