Hey all, thought I might share this setup I have for my Droid X. I actually had the real Motorola car dock, and returned it because my setup was more elegant and superior!
Note, this setup only works if you have the Verizon shell/holster combo that I got. The basic idea is that I'm using the holster itself as a dock, which I have hanging off a twist tie, which are tied across two stick-on hooks from any hardware store. That's it! Without further ado, pictures!
Here's what the holster combo looks like. Note the DX with shell is normally inserted with the LCD facing inwards (to protect it during normal use).
And here's the "docking station" (more like a docking belt/wire). The clip is used to push against the right side of the phone so the LCD is angled towards the driver.
Here's what the setup looks like after I clip on the holster to the wire.
Finally, here's the whole setup in action. Note I do need to remove the phone from the shell (which is easy), and now it slides snugly right into the holster with LCD facing forward.
I have full access to everything on the phone. I can even set a Homescreen shortcut to the Car Dock mode if I want.
Note that I'm also powering it with a 3rd party USB charger with a retractable cable, thus decreasing the mess. And when I'm done with a trip, I just take the holster and go.
My dashboard is completely uncluttered with any base stations (for using the dash mount) or any cables flying about. There's no tell-tale signs that I even use a GPS or a smart phone that would attract thieves.
Feel free to comment or copy!