Does anyone know if the boost radio harness that plugs into the HU is separate from the audio wiring harness? ie: Can I replace just the cable that goes into the HU without pulling out 30 feet of wire and not having to splice? (Yes I can pull th HU, but I am lazy and hate pulling the downtubes if I don't have to). The boost radio upgrade on realoem seems to suggest that I can just replace a small section of cable, but I don't know.