This is a forum for only the NX4 Tucsons (2022+) so you may not get much of an answer here.
Tucson Forums this might be a better location to ask
If it's similar to my NX4, this engine sucks fuel like it's free when the engine is cold. If I fully warm it up on a cold day (10 minute drive), then turn it off and start a new trip I get much better mileage on that second portion. I don't think there is much you can do, all cars do this to some degree, maybe a block heater to get it warmer to start?
My experience with Honda cameras and aftermarket radios is it can be done...but needs to be supported by the seller. Daisata for example made a radio just for my Honda that supported the side view camera, but Kenwood units did not. You may have to do some research on ebay or Aliexpress
Tucson Forums this might be a better location to ask
If it's similar to my NX4, this engine sucks fuel like it's free when the engine is cold. If I fully warm it up on a cold day (10 minute drive), then turn it off and start a new trip I get much better mileage on that second portion. I don't think there is much you can do, all cars do this to some degree, maybe a block heater to get it warmer to start?
My experience with Honda cameras and aftermarket radios is it can be done...but needs to be supported by the seller. Daisata for example made a radio just for my Honda that supported the side view camera, but Kenwood units did not. You may have to do some research on ebay or Aliexpress