Well, you do bring up a good point about Copart Hoser. When I looked again at the ad, there was a mention of a previous "incident". It's quite possible that this vehicle was stolen and the NAV stolen out of it. Insurance companies don't tend to like stolen vehicles, so they could have auctioned it for that reason, and it would have gotten a salvage title then. Some enterprising person could have grabbed a non-nav and swapped it in to make a functional truck again. Regardless, from what Robred said long ago, you would almost need an entire truck to do that....dash, harness, computers, etc. Too costly any other way? But...now you confirm there was a part number in Lexus, so I'm back to "wow" no matter what. Wish we had a straight on photo of it.