nope theres some holes that you can get a wire through. atleast there are in my cup.
I ran my ipod lead firstly down to the cup holders near the gear stick, Didnt like the messy look. So i fed it back and up the back of the glove box and theres a hole big enough to get the ipod connector thorough.
You only have the hole if you haven't got a glovebox light, which an RSi should have so its drill time.I think the holes are only in some models, i.e. i don't think they are in the 182?
If you get a fairly big drill bit you can just drill a small hole in the RHS of the glovebox, wont be difficult and will mean you can feed the wire in no problem...