If your vehicle never had navigation it is not as simple as installing just the head unit. Please do your own research if trying to install navigation in your vehicle for the first time as we are not installation experts.
Plug and play compatibility is only guaranteed if you are matching the faceplate ID with the unit you are replacing. The item "NEW TOYOTA Highlander Navigation GPS LCD Display E7016 JBL Radio MP3 CD Player" is in sale since Wednesday, August 16, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Other". The seller is "oemcaraudio" and is located in Burnsville, Minnesota. This item can be shipped worldwide.