7M06-:Tape the spoiler using woven tape for example to prevent damage to the paintwork.
8M06-:Mark out the location for the holder for the supply connector plug using a bradawl on the rib, see illustration. The arrow on the holder should point forwards.
9M06-:Drill two 6 mm holes in the rib. Bend the rib down using a hammer handle for example in order to facilitate access. Fit a plastic hose to the drill to prevent damage to the paintwork.
10M06-:Position the supply connector plug in the holder and secure it with screw and nut. The cover must open towards the number plate.
11M06-:Remove the tape.