Originally Posted by Benjamin (Post 524951)

a Capacitor will not help with the problem you are describing. Capacitors were originally used for competition use where the audio system was "Burped" the capacitor discharges completely during the initial "burp" and will re-charge after the current is reduced. you need an extra battery or 2 if you are jamming that hard. in my old competition van i had 6 batteries and 4 1.5F capacitors and twin 140A alternators. so either get a bigger alternator and a higher amperage battery or 2 or lower the volume a little bit.

remember that a diesel requires a good bit more amperage to crank than a gas burner does.