to fit a astra gte digital dashboard into a nova, you will need the following things:
astra dash unit
loom with a decent length of wire remaining
correct transducer for the dachboard
wire cutters
insulation tape
hammer
hacksaw
start off by removing the clock shroud by removing the 4 star drive bolts located in each corner, remove the shroud and place to one side.
remove the 3 retaining screws, 2 are located either side of the clocks, and one ontop in the center, place these screws to one side
remove the dashboard from the car, release the black wiring plug and the speedo cable from the back of the dash.
you will now need to rmeove the speedo cable from the car, this can be done by feeding the cable through the bulkhead and out into the engine bay, the speedo cable them bolts off the gearbox.
then you will now need a long piece of stiff wire, such as an old airel etc, then screw the transducer onto the gearbox and ensure that everything is secured on. you then need to connect the earth wire to an earthing point in the engine bay, then run the 2 new wires through into the inteior of the car, taped to the long piece of wire to ensure they get through easilly. then connect these 2 wires upto the dash using the diagram below:
you will now need to go back into the interior of the car, and cut the plug off the nova loom. keep this to one side as you never know when you may need it, if the clocks are broken etc.
then take the astra gte dash loom and simpley connect the wires colour to colour mainly. use this diagram to help you wire it up:
as you can see, it is fairly simple to wire the dashboard up, however, due to the fact that the astra dashboard has individual indicator lights for each side, you will have to splice these into the wires coming from the indicator stalk (black/white)(brown/white), these can be accessed by removing the cowling from around the steering colum, you simpley splice the dash wires into the stalk wires then. also if you have not got a oil temperature sensor on the engine (mainly came on GSI's/GTE's), you will need to leave all oil wires off, then simpley insulate these individually and then tuck them away out of sight, if you have no green rev counter wire, you will need to run one from the coil in the engine bay into the interior of the car and onto the loom.
then plug the digi dash in and ensure it all works, if all is working then your ready for the final stage (dont forget to test MOT necesseties, such as indicators, headlights etc etc)
then, the 2 metal L shaped brackets on either side of the clocks, you ened to nock these outwards with a hammer, only slightly but not too much, untill the clocks fit, then on the bottom of the digi clocks, there will be 2 pieces of plastic sticing out the bottom by about 3mm, like this ___!""!___, these need to be cut off and filed down otherise the dash will not fit correctly.
then you need to re-fit the dash into its hole, ensureing it all fits, and all bulbs etc work, then you need to re-fit the steering shround and the clock shround. then in theory you should be good to go
heres a quick pic of mine:
before:
hope this helps you all
after: