I have a 2013 LX 570 and my Bluetooth stopped working. I get an error message: "Bluetooth Module not connected please contact dealer". I havent contacted the dealer yet as im not sure i want to pay the diagnostic fee to find out that the module is defective. My question to you all is; is the bluetooth module built into the stereo or is it separate? if its built in, then replacing the unit with one of the chinese Andriod-based units would "solve my problem right? Been wanting to try them out but couldnt justify since my stereo worked just fine and I had a dash mount form my phone for nav and bluetooth for music. BUT, if the module is separate, can it be replace/repaired?