To all those who are thinking about putting in the new Rev/Speed meter. Since there isn't any instructions in english you can just go to the A'PEXi website to download the old Rev/Speed meter installation manual. For the R32 you use only four wires - yellow, red, purple, and black. Pretty straight forward.

If you call Apex'i USA they will send you an english manual. That's what they did for me when I got my 'metric' Rev/speed meter.