Audi Central Locking

["Christopher G. Gharibo, M.D." <gharic01@mchip00.med.nyu.edu>]

 Hello, I own a '91 pearlescent white Audi Coupe Quattro.  I just wanted to let everyone know that I've been enjoying this list for over a year now.  My participation is lacking because I dont auto cross or have too many maintenance/repair related questions yet.  

A feature that my Coupe lacks is the availability of an interior switch to lock or unlock all doors.  I wish to purchase a suitable Audi factory switch to install on the center console and actually wire it to the power lock mechanism to lock on and unlock doors on demand.  Has anybody performed this modification to their Audi yet?  If so, please provide details.

Thanks.

Chris