l3anfrmda8/ns_radio ? reverse-engineered prompt

Build me a FiveM radio script for ESX Legacy that works with PMA Voice.

I want players to be able to use a radio item from their inventory, open the radio in game, and connect to channels easily. Make it fully configurable in a simple config file, and include clean notifications like ns notify. Also add the radio item image for inventory use and make sure the script is set up so I can drop it into my server with minimal changes.

Please make it feel polished and optimized, with sensible defaults, clear commands or item use, and everything needed on the client and server side to work properly. If you need to check current PMA Voice or ESX setup details, look up the latest docs online and match the script to that.