Speedo Fail Diagnosis

[icedog13]

Guys,

My speedo stopped working this week and I am trying to find out if anyone can pinpoint the root of the problem. I know my car has the cable drive up to the clocks, but the speed display on the Apexi Commander is also zero. i don't know where the ECU gets its feed from so I can't tell where the problem lies; gearbox speed sensor perhaps?? if it has one? I dunno.

Thanks in advance.

Craig.

[supremeweb]

gearbox speed sensor would be my guess or the cable between?