so i finished my build, I have two 4 ohm Sa v.2 down to 1ohm wired to a banda 3000.1 my amp will go into protect mode when I hit loud volumes when i play downloaded music off my phone but when I play music off of youtube i can push it a lot harder, im kinda of confused, any one have any ideas, I grounded it to the body of the trunk and my power wire is hooked to the battery. tomorrow morning im going to test the ground.