I unplugged the connection nearest the floorboard on the passenger side near the firewall. Should I disconnect both plugs? Does that have anything to do with my sunroof?

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'90 350SDL - 280k miles, not a brunette, Diamond Blue
My DIY milestones thus far - changed out pwr window switch, disconnected alarm system, changed oil and filter, took out headlights
My next DIY goal - find the vacuum pods