I installed a factory Sirius kit in my 07 vert. The receiver in mounted in the trunk, so the harness had to be routed from the radio to the trunk, which is essentially the same job you are talking about. You have to take the rear seat cushion out. The side panels, door sill panel, etc. are fastened with clips and you just pull the panels out for the most part. For the rear seat quarter panel (below the quarter window, pull the top cover off first and work your way down. I assume you are using a magnetic antenna. I mounted mine on the front edge of the trunk lid at first, but opening and closing the trunk caused the wire insulation to seperate. I bought a second antenna and installed it on the panel ahead of the lid so the wire doesn't move. Reception is just as good in that location.