Look in the "other book", you'll find a blower fuse conversion kit for something like $29.00. Supposed to be for moving the blower fuse out of the fuse box on '86 models and bumping to a 30 amp.
Let me know if you can't find it.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.