I can't operate non of these radios, they seem to be "fake". The manuals look over the van instruments, but I could not find any sections on the radios themselves, and the users' videos on youtube are little informative.

If there are good tutorial videos (including checklists) please suggest. 

The radios are actually XPlane components... I'm sure there's a lot of information out there on these older radios. Try Google. For example, Garmin has manuals on line in most languages.

ok I see, done via gps and adf radios )))

It's good, this plane and the way it's made is...really somethin.