My '99 RD07A is finally going to get the MOSFET upgrade. It may not be a mandatory mod but it surely is a good one. Even at 80 k kms. my current old style shunt R/R is still putting out and I also carry a new spare R/R which I will probably keep.
My new to me '96 Transalp uses the same R/R SH538D-13 so I'll just have to swap a connector over to make it work for the TA.
I think what sold me the most more than anything was the new generation water proof connectors. You never know when you might go for a swim.
Anyhow...I opted to buy the stand alone MOSFET FH020AA over at Jasonmotoelectreix.
The harness(s) were bought separately from Jim over at Eastern Beaver which is part A&B at the following link.
It's pretty much plug n' play with this setup. From the pic you can see the final 3 phase yellow connector (no particular order) and the + and - leads to the battery. The 30 amp fuse holder is waterproof and quite robust as also seen in the pic.
Garage is sub zero at the moment...installation will have to wait.