This is a coupler needed when installing aftermarket parts on Nissan vehicles. They are surprisingly expensive when purchased new. I am selling items that seem perfectly usable even as used goods, so I believe you can use them with confidence. The ground wire has been cut. Please judge from the images for details. We can accommodate multiple requests, so please feel free to inquire. Navigation Audio Coupler ※This is a used item. If an electro tap was originally attached, it has been removed before listing, so there may be exposed wiring where the vinyl has been stripped. We recommend repairing it with vinyl tape or the like before use. ※Since it will be shipped by regular mail, there is no tracking number and it will take some time for the product to arrive.※ (Delivery is only available on weekdays)