I change my battery cause it would not start so i did that everything went fine except the nav and radio. i put the code it still doesnt work. Then i called the dealer they gave me a code but it doesnt work. so i took it to the dealer they coded it guess what the nav work but the radio doesnt. they want me to schedule an app. i dont know that changing your battery will have to much complication. and also about 2 yrs ago i had the center console problem the light wont turn on fix under warranty and they change the code. please help thank in advance!