Sorry,
My 02 VFR received the ST2 in June 2018. Electrically, its connected to an accessory distribution box which only powers the system when the bike is turned on. My mechanic found the first one DOA, but the second one has about 4,000 miles on it. It doesn't seem to like cold weather, and requires rider re-education as the manual cancelling procedure changes. Pressing my turn signal straight now has no effect. The only times I need to manually cancel the signal is those rare instances where it doesn't detect a turn or lane change, or I've needed to change my planned direction (I know, bad idea). All of the components are hidden, so you would never know it was installed unless you pulled the right piece of the fairing off of the bike.
Brian