your question is a bit vague but I'm thinking you want to find a fuse that protects the key in pos 1 curcuit ?
I really don't know the answer so have a look at the fuses and the inside of the fuse box lid for little icons to
help you
find somthing that works with key in pos1 but not with key out and test with the selected fuse removed
be careful not to remove any airbag fuses as a trip th the stealers will be required to reset the fault light
or as you say read the fookin' manual