I'm looking for some guidance on removing the reservoir completely from a 997.2 C2S. I have the pumps and hoses detached and the reservoir and the reservoir is pulled forward from the chasis grommets. The last part is removing the wire harness from the reservoir and I'm stumped. It seems to be held by some kind of plastic nut, but it does not turn and I can't figure it out. Any guidance is sincerely appreciated. I have attached photos of the plastic piece. Thank you!