buffdaddy110
Junior Member
I was curious how important the head unit voltage is. I will be running amps for my system and I was always under the impression that the head unit needed to be 4 volts. However, when I brought this up to my local shop, he said that wasn't important because he had in line stuff he would add that brought the voltage up. Is he on the right track with this or do I need to spend the money on a 4 volt head unit?