Hello

I have a problem with the addition of Pois and Pois Type to my vehicle
I have contacted the manufacturer (Honda) and tells me that it is impossible to add them. For my is a drawback since I am a celiac and I am obliged to prepare the routes taking into account where as e or where buy gluten-free foods
On the other hand nor can I add radars and other points of interest... We are going that I prefer bringing off browser as it does not have too much utility
Would it be possible that some "guru" could tell me how to modify the firmware? or if it is not possible they could try explain me why?
Thank you very much for your time and help