fitting a shift light

[CraigShag]

i want to fit a shift light to my astra gsi (2003) does anyone know where the rpm signal can be picked up from.

or where i can get a pin out diagram for my ecu?

[SRi-Andy]

Someone posted something about this...do a search.

[gsi-jay]

in the back of radio is 1 place there is a few places cant remember wot colour tho as said do a search and all will be revealed

[K3FUS]

You can pick up the green wire at the back of the dash for the RPM.