Hello, I’m just about to connect my power amplifier. Have the supply line and mass already connected. The chinch cables on the opposite side too. I have attached the control line to the ignition plus that’s right? because I don’t have a remote connection to my radio…! The power amplifier has two chinch connections Why?It lights up a green and a red Led in operation, but no sound arrives at the boxes! I have to bridge all the outputs of the power amplifier so that I connect the boxes Is it possible to eat?