Is the OE installed Bluetooth hands-free device compatible?

AW: No. The Z-E2014M comes with an integrated high quality hands-free module by Parrot. Any OE installed hands-free devices should be completely shut down, by removing the respective fuse in the main fuse box. Neglecting this step will probably lead to interference and malfunction of the Parrot module. Remove the fuse of the installed integrated BT hardware in the vehicle fuse box to avoid BT interference issues.