yea, day after i got mine my cig lighter wasnt working either. Checked the fuse and figured out it was burnt(blown/w.e). Got the spare fuse there was and put it in and now it works again.

I dont know about the first gen but your fuse box will probably have a diagram of what all the fuses are. Just look for the cig/lighter one and replace it. And of course make sure you replace it with the right amp fuse