I am trying to understand the difference between the gps 2 and 3. I ordered gps 3 to be used with pioneer on my futaba system but it is delayed by about 2 weeks. I am being told to buy gps 2 as gps 3 is the same hardware with updated firmware. I am told if i update the firmware for gps 2 it is just the same as gps 3. Is this true ? If yes why would anyone buy gps 3 then ?
Whats your recommendation please. Thank you in advance for the help.