Ok i upgraded to a n4 from an n1, i have a couple of questions

 

1-my map display dont dim when my headlights come on nomatter if im in daytime or night time mode

 

2- on the n1 i was able to watch the rear camera full screen and listen to the radio or my satalite radio i had hooded up the the rca jacks on the brain ( i have a stelleto with a car kit not the n1 satalite unit)

but

on the n4 i cant figure out how to listen to the radio in rear view mode , it only plays the satalite radio,

 

3- if i upgrade to the 80 disks will anything mess up like the n1-n2 upgrade?

 

can someone help me with these 3 problems