Fully functional. I have not made any modifications, such as removing parts. If the wiring has been modified from the original, please redo the modifications yourself. ⚠Please confirm the included accessories before purchasing. If there are no accessories, there is a possibility that only the main unit will be shipped. #Car Navigation System List I have some antenna cords and other items in stock, but they will be sold on a first-come, first-served basis, so there is a possibility that they will run out of stock. If you bid without asking any questions, I will pack and ship only what is remaining. Please confirm before bidding.