Sony XAC40 UniLink Multi-Changer Adapter
The XA-C40 Source Selector lets you connect up to three Unilink system sources to your Sony in-dash stereo. Your add-on options include a CD changer, satellite radio, iPod adapter, and more. This XA-C40 Source Selector comes into play when just one of those sources isn't enough for you. It provides an opportunity to have a diverse component system in your car or vehicle.