Thanks, I figured that out just after I posted my last comment, typical lol. Still no go, was actually on 5v already and didn't realise it. Tried upgrading the firmware to try the speedo with the new rev burner but that still didn't work. Starting to think I'm not feeding the right signal into it. The cluster has a couple of networks running through it so I guess it needs another signal from there, oh well I'll keep looking for another one.