Dual Radio Wiring Diagram - Blog About Wiring Diagrams Boss Marine Radio Speakers Wiring Schematics Wiring Diagrams \u2022 Chevy Truck Wiring Diagram Dual Radio Wiring DiagramXd1228 Wiring Diagram - View and Download Dual XD1222 installation & owner's manual online. AM/FM/CD Receiver with Auxiliary Input, USB Charging Port and Detachable Face. XD1222 Car Receiver pdf manual download.. Having aftermarket car stereo problems? Checkout our list of common car stereo problems and possible solutions here. Post questions and find answers..