Ok thanks, i ended up going for keeping the 21 loom and electrics but im not totally sure what to do with the GPS wiring in regards to what will the PGM3 make of nothing being connected, what gear map will it default to? To me there seems no way of having separate 1st,2nd and 3rd maps and then 4th,5th and 6th wired to the 3rd gear map or is there?