So, when you disconnect it entire system shut down, it happens because you need to be changer connected or you have to bridge it. Let say if you point this two wires to each other one side of the wire will receive light signal from another wire. And system will come back alive to. But if you want to do it right way you have to order special bridge , which click on the end of this wire. They use it in officials repair stations when perform repair. You can find it in Europe for like 60$ or something . The other wire with few connectors is useless, you can use it for "ground" and +12v, but keep in mind It has 3 wires inside so it's G,12,12 but non of this +12 shut down when you stop engine and pull key out of ignition. You will have to find source in car with +12 intermediant so when you stop engine your clarion will shut down.