Garmin GPSMAP 168 Sounder ?'s
I recently purchased a new to me Garmin GPSMAP 168 Sounder. It is a black and white gps fishfinder combo. According to the Garmin site I should be able to load different maps, more fishing related maps, to the unit. There is listed the "Fishing Hot Spots" maps that can be loaded but that they are discontinued.
Now to the questions
A) What do I need to load better maps? (my unit doesn't take an sd or map card)
B)Is there a quicker way to enter waypoints than by just turning the unit on and entering them manually? Like a computer program or something? I also ran into the problem that i could not enter waypoints in my barn in the boat because i could not pick up but one satellite.