Thank you for viewing! This is an Android navigation system specifically for the 20 series Alphard and Vellfire. The Android navigation system allows you to use Bluetooth music, and by tethering with your smartphone, you can watch videos from YouTube, Netflix, and more. You can also download apps from the Play Store and use other applications. Depending on how you use it, you can enjoy a convenient and comfortable drive! Because it's designed specifically for these vehicle models, the frame fits perfectly, and the included connectors make installation very easy – simply plug them in! The product has been tested for power. Although it is new and unused, it has been opened once for inspection. There are no manuals or videos for installation. While it's a simple plug-and-play design, if you are not confident in your installation knowledge, please have it installed by a professional. The product is designed specifically for the 20 series Alphard and Vellfire, but there may be some incompatibility depending on options. If you are concerned, please compare the connectors in the photos with your vehicle's. Returns are accepted if the product does not start, but returns are not accepted if it is incompatible. Thank you for your understanding. We have stock available and will ship it on the same day or the next day. There may be delays due to various circumstances, but we will contact you in such cases.