Sorry, been a while since I've been on. Finally got all the things wired up, working and put the trim back in for the first time in a while. Got rather sick of working on or thinking about my car. Didn't last too long though, more to do this weekend

Cheers doubledip - to the rescue once again hey.

I've an MY08 SV6 btw. I thought I had the right wire there in the footwell, but can't remember where I looked to get that info. Also can't see which wire I tried without pulling the trim out again. But I just bought a Gregory's for my car (yep
finally made one). So I'm confident now to try again. I believe I can tap into the output shaft speed sensor as it goes to the TCM (handily located in my car). I did just do the dodgy 3way connector last time as I wasn't sure it was correct, so probably not a good enough connection either. Thanks anyway, I should be right now.
BTW- there's 63 wiring diagrams in that manual if anyone just wants a scan of one and isn't worth buying the whole manual.