Good evening everyone I have. A question for the gurus of federal signal Sim products and 2 legends I received, I followed the instructions to the letter and the trouble shooting for them. All check out, so I'm stumped, I hooked the legends up to the interface module and they still won't do anything literally, any help would be greatly appreciated, please message me with any advice I would like to try to get them working so I can possibly sell them, thanks everyone