Nova GSi clocks

[vauxhall_mechanic1]

Hi there, having problems fitting Gsi clocks into my C12NZ nova (j reg). the loom is exactly the same up to the back of the dash APART from there is 1 wire missing. the wire to run the rev count (as my nova does not have a rev count as standard) any ideas what i can run the rev count off????? any help appreciated

[Novadex]

look on the coil and you will see a spare spade, wire it straight from that. problem solved