Looks good up until you ran the wire around the A-pillar in the following picture:
The side curtain airbag runs all the up the A-pillar and across the top of the door under the headliner. Your wire runs across the airbag and I don't know what that will do when the airbag goes off. I would guess it would pull at both ends and turn your radar detector into a flying object near your head. Granted, that is probably a worse case scenario, but you get the idea.
Pop open those two covers on the handle on the A-pillar. There are two bolts underneath that you can remove. Then the whole A-pillar cover comes off and you can run the wires on the windshield side of the pillar and down through the dash.