Need some help with my audio setup. I upgraded my speakerss to the powerband audio system and added saddlebag speakers when I first bought the bike. I now purchased an oem trunk setup with the trunk speaker setup. I connected all the wires and harnesses. But no audio coming from my trunk speakers? I asked my dealer when I was purchasing the setup if I needed a 6 chanel amp and he said everything was included in the speaker kit. There is a 4 channel amp but no instructions on where to install it. I already have an amp added to the front fairing when I upgraded the sound system. Am I missing something?