Rob WM8S

Anybody ever done it? Am I crazy? I put one on my 2003 Tahoe, and getting to the outside skin wasn't exactly simple, but it was possible.

Sorry to revive an old thread, but I'm doing the same thing and can't for the life of me visualize where this will come out in the passenger compartment. I've taken the inside fuse block cover and knee bolster off, but where the other side of that nipple grommet is located seems hopelessly buried under dividers, panels, etc. Any thoughts? Thanks! ...R PS Thanks for the picture; you've gotten me half way there!