Last year, prior to going on a trip, I bought the ~$35 Garmin DC adapter. I discovered it was broke within the package when I got it out of the store. I got one off eBay soon after, for about $10. No problems since. Go with the cheaper, one; they are all made in Taiwan, anyways. Have any of you used the generic cigarette lighter adapter for the eTrex series GPS that is selling on eBay? Has anyone used one for a different GPS? If you have ever used one, did it work well, or did you have issues with it?