Adding an auto dim mirror
 

I would like to add an auto dim mirror to my wife's 2010 T&C. I suspect the van is pre-wired for the optional auto dim mirror and, if it's like my Sebring, the wires and connector are stuffed away somewhere above the headliner and near the panel with the 2 dome lights.

Can someone explain how I would go about gaining access? I understand I will have to remove the visors and visor clips as a start. I suspect I have to remove the panel with the front seat dome lights; but, I can't see how to do that. Thanks in advance.

BTW, I have the mirror and understand how to wire it, if necessary. I really just need to understand how to gain access and hope the correct connector is in place.