Re: 430 to 430n
It is a direct swap. The GPS antenna is part of the combo satellite/radio antenna on the roof in most models. If your vehicle doesn't have the combo antenna already installed, you will have to add a GPS antenna and tuck it under the dash somewhere. The 430s do not have the Uconnect module built in, that is in a separate box. The same module is used for both the 430 and 430N, so if your vehicle is equipped with UConnect, that is also plug and play. Just saying that if you don't have the UConnect module, you won't be getting those functions with a radio swap.