ClassicIDI said:Well I can say that depending on the amp you buy a capacitor is not needed with our trucks due to the dual batterys. I run a pioneer 760 watt amp two 10 inch pioneer subs a pioneer 200 watt head unit and two 6 1/2 in the doors with two 6x9 in the back and I have never once seen the volt gauge drop or any lights dim at all. I Have been running this system for several months now and have not had any problems at all.
both of my dual batteried diesels needed a cap.i killed 3 alternators in 2 days in my 94.my 95 actually needs more than a 1 farad cap as it still dims the lights.anything over 500 watts should have a cap