i just installed a cai in my 04. everything runs fine but now when i start the car the navi screen starts up as the PIN screen. i try to type my PIN in and it doesnt work!?! where should i look or go to deal with this?

 

are you typing in the right code? The navigation system has a sepereate code from the radio. IF you don't have the right one, take it to the dealership where they can call up acura corperate and get the code for the unit.