Can someone chime in if I am wrong... I have a 21 Bighorn 1500. I upgraded to the 8.4 Non-Nav Uconnect 4 radio. I wanted to add the front camera, but from reading all the post on this, it cannot be done because I have the 8.4 Non-Nav unit? Is this correct? Hoping it can be added as I already bought all the parts needed to do this. I already added the alphaobd setting but I do not see the additional "cargo camera" icon. This is what lead me to believe that it cannot be done because of the 8.4 Non-Nav U4 radio I have.