Installed mine today. Worked great right out of the box. I saw @
Trap63's note about the black relay wire after I was done. Went back and took a look and I think in my case the way I've got things tied up I need the black wire to be a few cm longer for it to work better via the engine side. When you slide the side panel back on it will tend to pull on the wire. I decided to put it back the way I had it - I used a little piece of electrical tape to both protect the wire and lodge it into a groove to keep the wire in place as the fuse box lid is replaced.
Thanks @
DiodeDynamics for a great product!