Yoda and Darth Vader have both lent their voices to TomTom GPS systems, and the reputed recording sessions for each are the subject of two pretty funny behind-the-scenes YouTube spots. The Yoda one, released this week, is below. The Darth Vader one, from a few months ago, is after the jump. We can't say whether or not it's actually Frank Oz and James Earl Jones doing the mic work here, but we are a little sad that Mark Hamill, who has plenty of free time on his hands, was upstaged by two characters who died in the original trilogy. And, perhaps an even bigger insult, where is C-3P0?