Thought I would say hi and to ask:- I have a 2001 Fiat 1.9TD Ducato based Mc Louis Motorhome and the speedo works/doesnt work/works etc. troble is, it works less than it actually does work. I know where the cable leads to, and from, but do not have a clue (techno numpty) how to disconnect from the speedo should it need replacing and could do with pointing in the right direction. thanks.