Givi wind shield and high Touratech seat on my 2009 Tenere. Mounted a Polisport high fender (from OTR) and an inexpensive handlebar bag (mounted on the back-end side of the bars) today, and found it to pleasantly reduce buffeting.
I don't know which one that did the trick, but I suspect them both to have contributed to the improvements.
(Thanks to Pleiades that I saw mentioned the high fender might reduce the upstream for some riders
)