[s-cars] "Multi-function" switch replacement--advice needed

[Marc Gorelick]

Hi all:

I am in the midst of replacing the "multi-function" switch on my car 
('93 S4). This is the turn signal/cruise control/brights switch.

I have managed to get the air bag, steering wheel and upper steering 
column trim pieces removed, but I can't get the lower steering column 
trim off. It appears to be held on by four screws, only one of which is 
even remotely accessible--the other three (lower) screws are covered by 
the lower trim, so that I have no idea where the screw heads are! It's a 
bit of a catch-22; the screws are covered by the very piece I need to 
remove!

Can anyone who has done this job before please tell me where these 
screws heads are and how to get at them without destroying the trim 
piece? Am I missing something obvious?

Thanks!

Frustrated,

Marc