Quick Overview The Pioneer AVH-521EX CD/DVD receiver features an interface that allows you to place your favorite sources on the home screen. WebLink compatibility provides access to several apps, such as navigation and weather, on your screen with the help of your phone. Bluetooth® adds wireless convenience, including hands-free calling and easy wireless access to the media on your smartphone. For iPhone® users, the AVH-521EX supports Siri® Eyes Free while in the car. Touch a button to listen and send text messages, place calls, and ask questions, all without taking your eyes off the road. The AVH-521EX covers all the bases with CD and DVD playback, an aux input, and Android™ and iPhone® control via USB. Add a rear-view camera for a better view in crowded parking lots or when backing out of your garage.