You did get to the point where the front dash 12V power point is a separate fuse then the Cigar lighter right ?
41 is only the Cigar lighter.
39 is the Power point in the dash.
The other question, is what are you using to check for power ?
The 12V male plug some times has a small glass fuse in the end of it, that could be blown. This looks like the old glass cartridge fuses that were in cars in the 70's. Maybe it is a newer one with a ATM style fuse in the side ?
Use another DC power plug / assy to check if the power point / cigar lighter is blown, or if the smaller AMP fuse in the DC plug you are using is blown.