These auxiliary inputs are designed specifically for select Acura vehicles to add a 3.5 mm aux input jack to your factory Acura radio. These auxiliary adapters plug directly into the back of the stereo providing the best possible sound quality unlike many of the generic FM transmitters and modulators that are on the market. Check the vehicle compatibility guide to ensure your specific model Acura is compatible. If you can't find the part that fits your vehicle, please contact us so that we can help find the part that fits your vehicle and specfiic needs.