Hi Brit Boy,
The UK Alpine Owners club has late model standard wiring diagrams on their website if you need one.
Series IVs are Positive earth as standard, Series Vs are negative. We have changed our Series IV to negative earth and incorporated an alternator.
I know that this is the 'stock' part of the forum but I have completely re-wired my son's Alpine with a modern wiring set up, L.E.D. dashboard lights etc.
The incorporates multiple fuses, relays for the lights and horns (massive improvement) and things like a tracker, electric fuel pump, alarm, inertia kill switch (car is an automatic) etc etc.
If you (or anyone else) wants the detail of how I wired the car I am more than happy to E-Mail the directions to you. I am NOT an electrics expert or qualified electrician or anything but I did the car slowly and methodically and it has been 100% reliable since I did the work. I took the dashboard out and wired that off of the car, then I taped each separate part of the loom to the outside of the car and worked my way around it making everything work before I fitted the wiring into the car.
I also incorporated a number of additional earth wires which is something I would recommend.
These are fuses, control boxes etc inside the passenger compartment on the bulkhead rather than exposed to the elements beside the engine.
This is the back of the dashboard being wired off of the air
This is the wiring being 'dry fitted' over the car before re-spray.
This is the finished article
Best Wishes,
Tim R