Wiring kit with various wire connectors, ideal for transplanting and installing genuine car navigation systems and audio systems from Toyota and Daihatsu. ★This is the audio connector shape for Toyota and Daihatsu vehicles, please be careful not to make a mistake. ★Main male coupler harness and rear speaker harness ★This is a male coupler type harness for installing genuine car navigation systems and audio equipment from Toyota and Daihatsu into vehicles from other manufacturers, just like aftermarket products. You can make it work like an aftermarket product by plugging it into the connector terminals on the back. Please install it like an aftermarket product with a separate vehicle model-specific audio installation harness connected. - Wiring type: Multiple wire connectors - Number of connectors: 2 connectors, main and rear - Wiring: Power, illumination, speakers, antenna, ground - Terminal type: Crimp terminals When aftermarket products are expensive or difficult to obtain, You can install relatively inexpensive genuine products, and the genuine quality will look natural and smart. I think it can also be used for large navigation systems from Toyota, etc. Thank you for your consideration.