I have two hds gen 3 9" graphs networked in dash and bow ( both flush mounted). I won 2 HDS Live 12"s in a boat in the box kit. I was going to get rid of the 9"s but the Live 12 will not fit in the console and would be close in the bow. Thinking about leaving both 9's and adding the Live 12's to the boat. Anything I need to consider when networking all 4 together vs leaving the Gen 3 9's networked together and separately networking the Live 12's ?