OR...
Perhaps being that guy with little M/E Experience you realise you CAN turn on the electronics and knowing how to operate the radios you get on the radio, explain your situation to anyone who is listening and ask for someone who does have experience on a PA31/Whatever to run you through the basics to get you underway safely!! Or perhaps you can only get ATC and you explain it to them and get to call the first appropriate training school they can think of and get them on the horn for you to run you through it!!
Hows that for out of the box thinking?