i have a second on the way with 17.5 motor and card £33 60 a version
my first is in a dave on 1s updated to latest 930 stock software i too had fan problems didnt think about swopping plug wires
wired direct to battery input wires at speedo as previous post my solder was higher melt point than posts on speedo itself so be careful when soldering
i dont think quality is any where near HW as its blatant copy but my first one cost £17 so it was worth a shot
regards dave