New to site...old to boost!

I already had the 3 bar from before....I also had installed the 21psi unit onto the board, which was pretty nifty how it went together.....I just cut the prongs, unbolted and unsoldered it.
The 3 bar uses 3 wires just as the 21 psi unit so I just solderd the wires directly to the board and ran the wires out the tubing hole...just going to mount the map sensor beside the MS2...found the wiring diagram for the 3 bar in the online megamanual.