As VNX mentions I'd look at individual units. The SatNav and GPS are well combined in many units allowing you to access the basic GPS information which is all a SatNav receives and uses anyway. Also a SatNav is something you may keep in the car where as a GPS is something you may take bushwalking or boating so there are reasons to have both.
As for the UHF the Icom IC-440 is the pick of the units to install in a modern 4WD as the only piece that is needed on the dashboard is the handset which includes all controls and speaker. The rest can be put anywhere you like inside the vehicle. The problem with the GME units is they have the speaker in the base unit and so when you fit it in the vehicle you can't always hear it.
UHF - technology changes slowly
GPS - In its basic form isn't changing
SatNav - Software enhancement of the GPS, changes very regularly as new models evolve.
MY15 Discovery 4 SE SDV6
Past: 97 D1 Tdi, 03 D2a Td5, 08 Kimberley Kamper, 08 Defender 110 TDCi, 99 Defender 110 300Tdi[/SIZE]
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