Motorola HF850 - Manual (Page 12)

10
Installing the External Speaker
Note: Always use the supplied mounting hardware.
1 Mount the speaker to the transmission hump or beneath
the dash. Position the speaker so that it does not directly
face the microphone.
Caution: The location of the external speaker MUST
NOT interfere with the vehicle’s air bag deployment.
2 Connect the speaker to the Bluetooth Junction Box.