I have this brand new garmin vista GPS
The alarm sound/beeper is just not loud enough. It is a little louder than a watch, and I need it to be about as loud as a cell phone. (I use it on a locomotive)
I have it apart and cant find the piezo to even start thinking about altering or replacing it.
Check out the pics .. note .. it has electronic compass and barimetric pressure. so .. the thing in the middle with with the ferrite looking thing, I think is the compass.
anyways .. some pics
here is the whole board
here is a close up of the ferrite thing
here is the front of the board to show it isnt there
thanks mike