So, if you’ve been following this thread from the beginning, you’ll have seen I had problems with the headlights flashing on/off multiple times a second, with the relay going like a Facet fuel pump. I thought I’d cured the problem only for it to resurface yesterday. I’ve finally found out what the actual problem is - the pull to flash headlight switch on the column had a dodgy connection between the two copper pieces - they were too close together and were shorting with vibration or if I jiggled the steering wheel. So I bent one of the contacts to give a slightly greater space between the two and Bob’s your uncle. Properly sorted and no chance of the problem recurring.
I’m currently wiring in a Bluetooth radio with speakers under the dash. Nothing grand, just enough to give some music in the background rather than having to hum to oneself. The original Blaupunkt that came with the car looks the part but is MW and LW only which is pointless these days, not to mention having dreadful sound quality, and I’m not paying hundreds of pounds to get that converted. I’ll sell the Blaupunkt with the car in case the new owner wants to do that. I’ll post pics once I’ve got it all sorted.