Chrysler Sebring NIGHTMARE

I’ve taken my car to THREE repair shops and no
one can figure out what’s wrong. My car’s warning
lights will come on (several of them) while I’m
driving and the speedometer will shut off, along
with the RPM. Once I turn the key and shut it off, it
will not turn back on for days at a time. It basically
chooses when it wants to start.

However when I take it to the dealer for repair it
won’t stall for them. Just me and whoever else I try
to get it started.