Order the 210 off Amazon along with the NMEA harness you need.

https://www.amazon.com/Ancor-270000-...a-568826969162

I wired the red to red and black to black in the radio harness. Plug the backbone cable together to the tee under the dash and done. Make sure and attach the terminator back in and I had to reset the remote once everything was powered for it to see the new radio

No more BT200 adapter either. Bluetooth is built into the 210.