I can bypass my blower and it works great. I have no power to the plug that goes into the speed control. I have checked the fuse, I have had the control apart on the dash, I have another relay which I installed with no change. Funny thing, I let this car sit for two weeks and the fan control worked! When it quit, it worked for a second then quit, when I hit the defrost button it also worked for a second then quit. Just like a fuse had blown. Does this 560 SL have a long fuse like some of the other styles of Mercedes? I haven't been able to find it so far. Help?