As you may know, my '78 NYB sat for a number of years before I got her. Most of the electrical system components didn't work and I've been troubleshooting and repairing things most of the summer. I just replaced the blower motor and now I have to replace the blower motor switch. I don't have the auto temp II. My question is what has to be removed from the dash/instrument panel to gain access to the blower motor switch?