2001 2500hd gauge cluster doesn't work and trams won't shift...

[DoornbosOutdoor]

I have a 2001 2500hd. I hooked up my BOSS plow and the truck quit shifting. The gauge cluster also quit working except for the back light. I spent the day checking fuses and connections but can't figure out if it is coincidence that this happened or after I wired the plow or if I did something backwards on the plow wiring. I get codes from the trans for shift solenoids 1-2 and 2-3 and the TCC. Any ideas????