Yes, you need to try one of these so we know
Concept CD1210 1200 Watt RMS Class D Monoblock Amplifier Mono Car Amp 2400 Max | eBay
oh and the fusing pic is wrong, it's fused at 160 amps I believe, didn't you call and ask Chev?
Good start though and those SA-8's were a good idea that allow...