If you’re looking to add an aux input to your car, there are a few things you’ll need. First, you’ll need an aux input connector. This is a small, black connector that plugs into the cigarette lighter or power outlet and allows you to connect an audio or video device to your car’s audio system. Next, you’ll need some electrical tape and some screws to attach the aux input connector to the car’s wiring. Finally, you’ll need a power supply and a speaker. The power supply will give your audio system enough power to play music from your Auxiliary Input while the speaker will allow you to listen to audio or video content from your Auxiliary Input without having to worry about connecting it directly to the car’s audio system.