S3 fuel rails seem to be a popular topic lately, but I haven't found an answer to my question. I'm trying to remove mine without removing the throttle body and intake to send them off for cleaning. The isolator looks to be threaded into a weld nut on the fuel rail on the top side and held with a nut to a bracket on the bottom. Getting to the bottom nut is next to impossible. I can reach it from under the car with a bunch of extensions hooked together and a u-joint, but can't get on the nut well enough to turn it. I'm using a 10mm socket, maybe the wrong size? How do I get this thing off? Here's a crummy picture of the weld nut from the top. Thanks for any advice.