IP_Karlos's post in LA radio was marked as the answer
Hello there, my name is Karlos, and I will be helping you today. Using the radio is really easy. You just need to have a working mic in-game (Roblox).
Next, go to the armory room where you will see the body cam and the radio next to it. Get close to the radio and press E to add it to your inventory. Once you have it, it will appear as a tool. From there, turn it on and press M to speak with the team. For more information, please reply to this message.
Thank you! Karlos_Division / Karlos_129
If I'm allowed to provide a video I will do that for you.