The same way you enabled features. The only difference is the file names. They must be with text "disabled" instead of "enabled".
DeviceConfig_VideoPlayback_Enabled.xml -> DeviceConfig_VideoPlayback_Disabled.xml etc.
I did do that. I put just one DeviceConfig_VideoPlayback_Disabled.xml and restart my gps . It still show video icon.
The xml is place inside X:/Garmin/xxxxxx.xml
=========================================== Nuvi 3450, SW v7.60
City Navigator North America NT 2013.20 & CityXplorer North America 2013.10
Enabled all features except Bluetooth & Voice Command
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