The towbar has been fitted to the MX5 for a year now in preparation for the cycling holiday last year in Norfolk. However I never got round to wiring the electrical connector up. So I’ve been at it.
And now its all tested and works fine. Just the number plate issue with the trailer and then my dad can use it to go to the tip in I guess. The trailer doesn't get used for anything else anyway. On the other hand I can now get one of those thule bike carriers that attach to the towbar. We will wait and see.