Garmin GPS 111 plus
Hi all
I picked up a Garmin GPS 111 plus in a garage sale tother day. ($10) it seems to go ok, but has no leads etc. The model is obsolete but have downloaded the manual...all 114 pages of it.
There is a 4 pin plug at the back and 2 of the pins are marked + and - , well you know what I mean. Since the leads are 400% the cost of the unit I will try to make my own...does anyone know the input voltage and wether the protection from spikes etc is in the GPS or in the cigarette lighter plug. The picture of the plug look just like a cheepie from the car parts place, but of course I can't try it till I know a bit more.
Any info on the (I suppose serial) interface would be helpful as well LR