Not today, but Monday, finished fitting some Ring air horns. (Well, used the Ring compressor but used some old Fiamm trumpets as they were a little bit shorter than the Ring ones, and are made of thicker plastic). Spade connections into the switched live and negative for the original horn, then threaded the wires back to the relay and compressor which is mounted behind the RHS side panel. They're painfully loud and should be enough to be heard by dopey drivers on the motorway above the radio. Close call on M25 on Friday, air horns bought Friday afternoon. Very awkward threading the wires and tubes as far away from the engine as possible, but well worth the effort as the difference in volume is like comparing a gnat to Concorde.