Just a heads up and maybe base thread for aftermarket headunits that offer bluetooth. I just installed a JVC KW-XR810 headunit. It has integrated BT with an ADDON USB module included in the box. This unit works great with the DX, Does BT stereo audio, Phone book interchange, and Voice Dialing control. BT audio sounds pretty good, the phone functions work well. I also tired a Pioneer unit and I don't remember the name. Just thought I was start a thread so that people could know ahead of time if they were looking for an aftermarket headunit that does BT. PS, with BT enabled and with nav on, the nav commands came through over the car speakers and interupted the music. More or less, honestly it worked better than I thought it would.