Hey guys, I need a little help. I have a '15 650 Adventure (with the OEM side cases). I wanted to mount a Givi Monokey top box, the TRK46N, so I ordered adapter plate SR3101, which turned out to be the wrong one. Another call to Givi USA resulted in them telling me the SR3101 "is not compatible" with the 650 Adventure. I said "really?" Then he told me I would need a "universal" mounting plate, the E251. Can anyone here advise me if that is correct? I'm down to one nerve left and I don't want it stomped on by ordering another wrong plate!