Garmin G5 Pilot's Manual page 41

Changing the navigation source on the external navigator (GPS,
VOR, LOC, or VLOC):
Use the associated external navigator to toggle between GPS and VOR/LOC
source types. Refer to the appropriate external navigator Pilot's Guide for
more information.
Changing the navigation source on the G5 (GPS, VOR, LOC, or
VLOC):
1) From the PFD Page, press the Selection Knob to display the Menu.
2) Turn the Selection Knob to select Source.
3) Press the Selection Knob to cycle through available navigation sources.
Figure 2-24 Navigation 'Source' Menu Option (PFD Page)
190-02072-00 Rev. J G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft
Figure 2-23 Course Deviation Indicator (HSI Page)
Flight Instruments
Course
Deviation
Indicator
Navigation
Source
27