I really did not go over this thread, but I went over your GMFS thread. Dude, re-do that wiring. You could seriously burn down your truck. It's hack-tastic. I did not notice, but did you even upgrade the charging system in your truck to handle that?
Seriously, fix that wiring asap. Your box looks awesome, great job on that. And I'd ditch the mirror thingy. It looks cool...on a JDM car. Not a American suv. Plus, that JDM mirror does not look right when you put a 1940's GMC emblem on your truck. I like the emblem. I'd color match the bottom section of it and I think it would look sweet!
Not trying to be a GMFS *******, just trying to give some advice
If you're talking about the mess under the back seats, its getting redone in a couple days when I wire my speakers to the 2 channel amp. No I haven't upgraded the charging system, its only pulling 80 amps max. I'm not experiencing light dimming or anything. I do have a slightly bigger battery and I've been meaning to do the big 3 upgrade soon.