Thanks; I ordered an OEM gen 2/3 5.1 update off eBay today. I read somewhere in IH8 that the gen 2/3 laser may be too weak to read burned discs. Not sure about that but the OEM was cheap and the dealer I called said copied disks won’t work in my truck; to be fair he’s not an objective participant in the problem solving . Hopefully the 5.1 works. If it does I will be content. I use my phone for real maps anyways!