I was putting down sound deadener on the inner firewall so I could start adding the wiring in my 57. I had a heck of a time getting the grommet over the main wiring harness that goes out to the engine compartment. I have the fenders on, but no engine in place yet. Is there a trick to setting that grommet in place in the firewall with the harness in place? I have to remove the hood and left hinge to get to that location, but I don't want to remove a fender after all the time I spent getting the gap right.