Raf........the rear indicators were mounted in 2 different positions depending on what country the bike was made for .
Generally speaking......Oceanic countries , Canada and Germany mounted to rear tail light ...........
USA..........mounted on the rear part of the main frame......just to be different and a pita when trying to mount side bags......
You have nt mentioned if you have a wiring diag/service manual to work from , specific to your bike . If you don t , use the search function to locate one , as these are invaluable when fault finding and restoring.
Non of the flasher cans you have are standard. To have the self cancelling feature working you need the original unit. There are people on ebay........in particular a UK seller of aftermarket parts for the xs1100 (Yambits) who advertise and sell a flasher he claims is to suit..........in short.......it aint and don t .
I have taken up this issue with him after he sent me 3 ..he still continues to sell the same unit . I had to rewire the terminal block to suit the one he sent ....also with the result being it did nt engage the self cancelling function he claimed it would .