Worked awesome for about 2 months. When I first installed it when I turned the truck on the voltage meter read 15.0 volts in my new gmc. With the amp and subs full power it never dropped below 14.3 volts. I was amazed at how much louder my system was. 2 months later it’s back like I don’t it installed. It will drop down to 12.5 volts again. I’m pretty sure it’s dead. But it gave me two months of smiles
