MPZ06

I have read the tread on Flashing the 4000 with 4100 Firmware and problems with blue tooth. Is this a dead issue or has anyone tried to correct. Maybe someone more qualified than my self can edit the 8000 Flash and add the Android Auto Application to it. Kind of work it backwards. IDK just looking for a fix, like others on here I just purchased my unit less than a year ago. Thanks for any input.