Help identifying NTG version
I require some assistance in identifying my NTG version as I seem to be getting mixed information based on what's available. My vehicle is a E250 CGI A207 2011. According to various sites, 2011 was when Mercedes started shipping NTG 4.5. However, my system does not support Bluetooth Audio. Additionally I do not have a storage slot nor a USB port. When I decode my VIN, the option Audio 20 is included but it does not specify something else. The attachment is a picture from my system information.
Can someone point me in the right direction please?
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