Radio User Manual
58
VM9324
BLUETOOTH OPERATION
NOTE: Bluetooth operation requires an optional BTM15 accessory. 
The BTM15 module has a secondary microphone for voice recognition. 
When installing the BTM15, the original single microphone that came 
with the VM9324 can be disconnected and the BTM15 secondary 
microphone can be used. 
This connectivity eliminates the original microphone and allows the 
BTM15 to perform voice recognition and Bluetooth functions for a 
cleaner looking installation. 
About Bluetooth
Bluetooth is a short-range wireless radio connectivity technology that is 
developed as a cable replacement for mobile phones, handheld PCs and other 
devices. Bluetooth operates in 2.4 GHz frequency range and transmits voice 
and data at speeds up to 1 megabit per second. Bluetooth was launched by a 
special interest group (SIG) comprised of Ericsson Inc., Intel Corp., Nokia 
Corp., Toshiba and IBM in 1998, and it is currently developed by nearly 2,000 
companies worldwide. The Bluetooth word mark and logos are owned by the 
Bluetooth SIG, Inc. and any use of such marks by Audiovox Corporation is 
under license. Other trademarks and trade names are those of their respective 
owners.
NOTE: The line-of-sight distance between this unit and your cellular 
phone must be 8 meters or less for sending and receiving voice and data 
via Bluetooth wireless technology. However, the transmission distance 
may become shorter than the estimated distance, depending on the 
environment in use. 
Before attempting to use the Bluetooth functions on the VM9324, you must 
purchase and install the BTM15. When connected properly, the blue light 
appears illuminated. Bluetooth features are only available when the BTM15 is 
installed. 
Please make sure your mobile phone supports Bluetooth functions (Headset 
or Handsfree profiles or both). Adhere to the following guidelines for 
successful operation.
• Before using Bluetooth functions, you must pair your mobile phone to the 
VM9324 head unit (see “Pairing the Bluetooth System with Your Mobile 
Phone and Head Unit”). To ensure the best reception for pairing and re-
connection, please make sure the phone battery is fully charged before 
you begin.










