compatible with the Bio Module

I use the Bio module for user profiles. You CAN add a location to the Bio module but (I am guessing) since the location isn't a CCK field, you can't have the location fields appear on the user registration form like other Bio CCK fields.

Is there a way to make this happen? As I want to collect user addresses upon registration and add their markers to the map. If I can't put the location field into the registration form, I doubt users will go to the trouble of going to edit their Bio to add their address.