The Hawg Wire HUA-470 Adapter permits all the hand controls to function like your stock radio. You give up a couple features with the aftermarket receiver...no intercomm and no "automatic volume control". What you gain with the aftermarket receiver is a red/blue backlight option, aux port/usb port on the back of the radio vs the front, pre-amp ports, your i-pod is now charging when connected with the USB cord, all your music titles/artwork displayed in front of you, bluetooth phone capability, satellite radio capability at a fraction of the cost of the Harley option and all this under warranty (I purchased a 3yr warranty through squaretrade). With this receiver and the Alpine/Sirrius satellite receiver you also get a feature called "game alert". Pick your favorite sports teams and when the score changes your music is interupted with the update broadcasted.