Mercedes Benz

While in las vegas 114 degrees my stereo stopped working, cant get panel to open for cd ejection, it powers up but then shuts off, so cant get radio or listen to cds, in may 06 dealership replaced cd changer also where is the diagram for fuses, i got to the fuse box under hood but no diagram to tell me which fuse is for what componet?

Car manual would have fuse location which for where