PlymouthScamp71 10+ year member
Member
Ok I replaced my head unit to a sony explode, added a sealed battery, and ran 4 awg power wire from the front to the beck and a foot long 4 awg ground for the second. I still have te problem of my amp going into protection mode. I bought a volt metter and my car off it reads around 12.30ish car on it reads 14.50ish (both batterys read the same). Now when the car is reved it jumps to 17+ volts.. my alt is a 75 amp 50% duty alternator I know I need a 100% duty one but is there anything else I could do? right now I have to run my lights and heater and over 25 mph it does to many volt and it shuts off my amp AND head unit...