1. At the installation site, drill two holes Ø2.5 mm:
2. Drill a rectangular hole 30×12 using a milling cutter or drilling bit and install a push-
to-talk key adapter
3. Fix the push-to-talk key adapter on the surface with self-tapping screws
4. Connect the push-to-talk key connector with the adapter connector:
5. Mini Jack 2.5 mm connector pin array to connect active speaker and Auxiliary