Hi, I am new to forum. I have a 2017 FFH 8" screen, sync 3 but without Nav. I am told that if I change the APIM unit to one with Nav it will work! I am tired of getting phone calls interrupting my apple car play nav from my iPhone. I am told that I already have a nav antenna. The new APIM will be programed with my vin# and it comes with NA 1 14 map. My question is before I spend the money and get the new APIM.....am I being told the truth about it being a plug and play in my car? Can you help?