Hi, as the title states im having strange electrical issues with my -91 turbo miata, a couple of days ago i was driving to work in the rain and all was fine, when I was leaving work later that day my wipers didnt work when my lights were turned on, the pop ups made the wipers stop. Now they dont work at all. I recorded a little video showing the issues. All help is highly appreciated. I suspect it to be a grounding issue or a broken wiper motor ( though I dont know how that would affect the normal headlights)

Here is a video link:
https://youtu.be/VQ5cldYqjow

Thanks