Hey all A friend found his old V4 speedo healer from his ZX10r laying on the floor in his garage. It's been sat there for years untouched. He said I was welcome to have it but he's unsure if it's still working. I've just looked on healthtechs website and it's £30 odd quid for a harness for my Aprilia Dorsoduro. I don't really want to spend the money on the harness if the thing isn't working so I thought about making my own harness. I've found the connectors I'd need for 3 quid! and I can get hold of wire for nothing. The tricky part is working out what connector does what on the speedo healer. I'm guessing 2 are live and ground and the other 2 are signal but I need to know which is which. If someone could take a photo of theirs so I can see what coloured wires are going to which connectors I might be able to work something out. 1 to 4 in this picture. Or if any one knows another way of finding out? cheers.