Mouse events for object with character controller

I am trying to use OnMouseEnter and OnMouseExit in a script attached to an object with a character controller.

This doesn’t appear to work. I cannot add a collider to the object without losing the character controller, which I need on the object.

I tried adding a box collider to a child of the object, but that didn’t work either.

Does anyone know of a workaround to make this work?

Any help is greatly appreciated.
-Larry

I don’t seem to be able to -not- get this to work.
This actually works with a single character controller standard collider, and with a different custom collider.

I’d suggest you start over from the example here:
http://unity3d.com/support/documentation/ScriptReference/MonoBehaviour.OnMouseEnter.html

IMPORTANT: DOES NOT WORK ON IPHONE.