Hi and thanks for the replies.

I just need one as I'm new to the fully functioning track MC21. First time it seized and 2nd and 3rd times are successful (touch wood).
I can only go a couple of times a year and I get easily distracted. If someone goes past me...I'm like what's he riding coming round me like that......then I'm like damn what gear am I in again. How many times did I just up shift?

SO I can glance down and say oh yeah that right it was 2. I'm in 4th. I know that if I was able to get there more it would become second nature till then though I would find it helpful.

Here is some layman's electrical talk: Alright I see the GPS has got the 6 wires coming out and I'm assuming that when a gear is selected that wire will become active (from the GPS) so it just a matter of knowing how the Gear indicators work as to being able to connect them up to that.

Is that a over general explanation of what I'm about to do?

Cheers