Good day to all. I picked up a VERY out of date f700bt and I've had it running in my 98 Lincoln Navigaor for about a month now. I am working through issues with the unit, using this site A LOT. My issue now is that I cannot update the firmware on the unit. I have the "LPUE080" folder on the top layer/folder of my SD card, the SD card is freshly formatted with FAT32, and there is nothing else on the card. When I put the SD card in the slot on the unit, it does not start any update, but operates normally (playing music, etc). I checked the A/V Source menu and the SD card is greyed out...ba