2018 Honda HRV EX Head Unit to LX

I have a 2018 honda hrv lx with factory radio, have attempted to upgrade to the touch screen unit of the 2018 ex model.
Once installed the new to me ex radio unit, will not recognize the vehicle is stopped thus when I attempt to link a phone thru blue tooth, it displays a message informing action cannot take place if vehicle is moving.
Further more, I am unable to adjust clock and reverse camera does not work. If I reinstall original radio all works as designed.
What am I missing.? Some rewire perhaps?. Thanks in advance.