Amp and battery and perko diagram help

I am having some grounding issues i think this is what my system currently looks like. Is it wrong? I have been running the perko on "both" while boarding and then putting it on "2" when im parked with the engine off. I then charge "2" back in the garage.

My two amp setup is having issues with the second amp going protect under load. And this past week with only one amp in use, it got fried. So i need some advice.

No opinions?

Are all your cables properly sized? The wiring diagram looks fine though you should invest in a combiner to automatically combine and separate some batteries. If your amps are going into protect mode, have you checked your speaker wiring and how you have your speakers set up (parallel, series, overall impedance per channel)?

This morning I made some changes. I ran ground from the amps directly to battery two (it was going to engine block). I also ran a 4awg cable from Bat 1 ground to Bat 2 Ground. I also ran the constant (yellow) power from the headunit to the 12v power on the dist block and ran my stereo ground to the dist block. It seems my problems have been fixed!