Only found this the other day, and not seen it mentioned on the site. I did add a post to another thread but just in case anyone missed it.
www.weisertechnik.co.uk
REACTIVATE REAR RUNNING LIGHT FUNCTION on 2021-23 model year R1250 GS’s and GSA’s - Weiser Technik
PRODUCT UPDATE This product has been updated to a new plug & play version - MBL-WWIZZRUN R-SEQ V3