The panel has to be removed .
The feed wire from the ignition sw to fuse 12 is Pk/Gn.. that is where you want to slice a new fuse holder . From the holder , the draw side will splice on to the Bk/Gn wire .
That will eliminate the fuse 12 . [ you are just cutting the 2 wires to F-12 and subbing a larger , seperate fuse/holder.]
I just have a schematic here , so I am not sure what is entailed to get to the wires , but they should be under the fuse base..