"Knobbies" all the way up? Worst idea i've heard yet! Dude look, it'[s your stuff and I'm not going to tell you what to do but you cannot just go swapping wires randomly and cranking knobs to the max unless your goal is poor sound and broken parts.
For example, take that motorcycle in your picture. Let ALL the air out of the front tire and drop it into a turn at 100mph - the result isn't going to be good. That's kind of what you're asking your system to do.

 

My suggestion is take the truck to a local shop wherever you are and let them look at it. If the truck isnt a total cluster f*ck most shops will tune it for free , and give you some ideas about batteries and maybe an alternator. Trying to diagnose a problem over the internet isnt really that accurate, as we only get a partial picture of what is really going on.

 

He's right, just get someone to take a look and get their honest opinion, and get your stuff working so you can enjoy it instead of worry about it. In Tarpon Springs you're close to A&B Audio or Pop My Trunk. And MCOR isn't that far of a drive for you.