I was just about to post a similar question, but I guess I'll add it here. I did pretty much the same thing and don't want to cut my radio bezel either. Instead I want to modify a factory nav radio bezel to work like this guy did.
Installed computer and GPS system
He lists the part number for the grey RF bezel, but i want it in brushed aluminum to match my console. I think it's odd that the RF bezel pictured is grey, while my non-nav RF bezel is brushed Al. Did they make a brushed Al interior with factory nav, and if so does anyone know the part number? My dealer was no help, and I couldn't find a truck like this on the lot to copy the vin from.