iSimple ISGM575 iPod/iPhone and AUX Audio Input Interface with HD Radio for Select GM Class II: * Plug and play installation maintains factory wiring integrity * Secondary input for additional audio source * Expandable with HD Radio, satellite radio and Bluetooth * Retains factory-installed satellite radio * AUX mode charges and retains click wheel or touchscreen functionality * Charges Apple devices at 5V and without any error messages * iPod/iPhone and AUX audio input interface with HD Radio, Sirius satellite radio and Bluetooth expandability options * For select GM Class II