You can disable the requirement to use a PIN code when connecting your SXAR1 to your PMA450 audio panel. To disable the PIN entry requirement, open the configuration menu and select Bluetooth. Select PIN code for editing and Press PIN button one more time. “Bluetooth Reset” will appear on the screen. When the menu returns, the PIN code will report “Disabled”. You should then be able to connect your SXAR1 to your PMA450 audio panel without needing to use a PIN.