soo, i was just reading this thread and figured id chime in. first and foremost.....the fuse problem. the v1 1500 is fused at 40x4....thats a 160 amp fuse minimum to reach its full potential. second your big 3 set up......usually the alt is grounded to the engine block soo it is very important to get it grounded back to the battery. and 3rd. welding wire. tis what i run from my batteries under the truck to a distribution block. then i run Knu Konceptz to my amps. soo what you see looks nice. and as for size of welding wire, a "number 2" welding cable is the same as 1/0. i work with the stuff daily and said to myself "self, this shit pulls 500 amps all day long and dont even get warm....USE THAT SHIT DUMMY!" just my 2 cents i suppose...