It's the 20-amp fuse located in the rear fuse box module (picture). It is mounted under the storage compartment behind the right-side seat. You access the module by removing the interior trim panel. To do that pull outward at the top left of center and right of center to release two clips and then lift it upward and out.
Many used parts available from a '92 SL. Email or PM for more information
Last edited by bobterry99; 12-30-2009 at 09:47 AM.