Available from just kampers 10/10 when working 0/10 when not http://www.justkampers.com/shop/reverse-light-fitting-kit-j10511.html cost £21.00 very easy to fit, just need to fit the sender into the gearbox take a wire to coil and then from sender to lights and all works
Very bright! Must admit, it does sound a better idea than reversing and hoping that people notice the huge box shape on wheels that is moving backwards! Perhaps I can persuade Matt to get them fitted ... although I suspect the response will be getting the leaking window sorted and finding whatever loose wire is causing the temperamental starting issues is higher up the list of priorities
update. seems they only work sometimes due to distance of the pin in the sender. tried a washer between gearbox and sender and that fixed it for a few days might be unrelated but think others have had same issue
Could be that the switch has failed due to oil contamination inside the switch meaning it's not up to the job. Find an original switch and see how that works.
Would recommend fitting a fuse with a smaller rating 5 - 10 amps as coil feed would not normally be fused as if reverse lights shorted could burn back to fuse boxin worst case scenario
According to the website, there's a wiring kit that includes the inline fuse holder plus 5a glass fuse: