I just completed the installation of this. I bought my kit from Northland marine in Three Lakes Wi. It was $700, a hefty increase from the legacy upgrade kit that was 400-450. But it requires more parts to convert to bluetooth so price increase was expected. Plus its still a TON less than buying a new bluetooth terrova that are out of stock all over.
It turns out its basically the bluetooth head and matching lower cowling, bluetooth control board and new matching cover, and GPS puck. Unfortunately there is no real full set of instructions, it comes with the instructions for installing the head as if it was a bluetooth unit from the factory. So far so good on the install, haven’t had it on the water yet to test the spot-lock feature but the unit powers up and all features work from the remote.
Cant wait to get it out on the water this week.