Curious how you routed your rear wires. I'm not happy with mine. Despite tucking it in everywhere, I swear I hear rattling back there now. I ran it around the right side along the headliner, going down the B pillar and back up, then along the rear headliner and back to the final location. There's just WAY too much wire. I think mine is rattling along the rear, as it's not really tight enough to tuck in firmly. This weekend, I might mess with it - I'm considering adding some small-diameter foam backer rod to make things tighten up. But first I have to install the new air intake.
