I bought a new Garmin Zumo 340 LM that I spotted on sale for not much money. Having then spent hours doing map updates, and deciding where to fix the unit on the ST1100 (in the centre, above the shelf), I have a small mystery!
What is the purpose of the small (1/8"?) socket at the bottom corner, at the opposite end to the SD slot? It's not mentioned in any paperwork, or on-line.....
I'd like it to be an output for a headset, but what else might it be?
Roger