Same problem we had! you need to change your new radio's channels to 12/0 thats where the old ones are at! by 12 /0 i mean you should see a small number at the top right right after the channel. normally coming from the factory it is at 1. anyway the old ones didnt have the extra channels within a channel, so in order to be able to hear them and talk to themyou need to change the new ones to the same as the old ones!