Hello all
I don't very often drive my s3 72 landy on a night but when i do, after a few miles the full beams randomly turn on, and they are difficult to get them off, also when this occurs some times a good hour or so after the engine is off, all the lights will randomly turn on again. Zero knowledge of wiring related things. Any idea how i fix it, i wonder whether i caused it when i fitted a new speedo cable about a year ago.

thanks