I'm replacing my fan with the Spal unit because mine is making lots of bearing noise.   I want to add a manual fan switch to the switch panel so i'm looking for an  actual part number of a lighted, waterproof rocker switch that will fit in place of the switch blanks?   I've seen lots of general info on this topic but not specifics on which switch to buy that will fit without modifying the panel.  It would be great if the switch was available at a local car parts supplier like NAPA or ? or could be purchased on Ebay.  Thanks,  Jim

https://www.motorworks.co.uk/vlive/Shop/Parts.php?T=6&Q=ELA59306&x=0&y=0

I used one of these but I did pick it up on eBay. I believe these are used on LT's and Police bikes for extra accessories.

Mine is not illuminated.

I don't think you can get illuminated switches (apart from the heated grips one). The gubbins and guts is there to add wee bulbs but the icon is always printed on opaque plastic. My unsupported-by-any-facts-whatsoever theory is that the switches were only illuminated when fitted to BMW cars.