KDC-W4044UG MP3/WMA/AAC CD/USB-Receiver Detachable FaceplateOptional IR remote controller USB Car Stereo KDC-220UICD-Receiver with Front USB & AUX InputKDC-130UBCD-Receiver with Front USB & AUX Input.KDC-130UGCD-Receiver with Front USB & AUX Input.KDC-130URCD-Receiver with Front USB & AUX Input.