The w205 uses a 50pin ribbon connector. Alpine has 22cm long extension service cables that have a male connection on one end and a female on the other. Part number 01E34831S01.
So with that information, I called Alpine Tech Support this morning...they said it can't be done.
I was told that if I wanted to detach the monitor, it could be placed no more than six inches away from the main unit. I find this interesting, because the ribbon cable extension (genuine Alpine part) that I mentioned earlier is just under 9 inches long (22cm). They said the power signal would not be strong enough over several feet of extension. I suppose this is understandable.
Ultimately, I was hoping that using a cable such as this one would make this all possible:
Obviously I don't need 5ft, but you get the idea.
Anyone with any technical experience know how far a signal can be carried over a ribbon cable? I'm sure Alpine Tech Support knows what they're talking about... but then again, a small part of me is thinking that there has to be a way to pull this off.