Re: pioneer dual din navigation in dash?
The OEM Nav from Jeep is an Alpine. All software updates, internal AND maps are provided by newer map DVD's. Once updated by the DVD, you cannot go back to the previous DVD.
Actually, I prefer this, as the unit, itself, will be kept up to date. My other vehicle, '04 Cadillac SRX, is NOT like the Jeep. It only gets new map data, but no internal updating.
'06 Commander Limited, Black, Hemi, Nav; '04 Cadillac SRX AWD, Blue, N*, UltraView, NAV; '00 Regal 29' Commodore