i just bought a 04 tl with 93000 miles and the navi and cd player wont work the navi screen say check disk, well i checked the disk and there isnt a disk, sort of pissed cuz it worked when i test drove it. i checked ebay for a disk and there are a few diffrent disk out there and im not shure what disk i need and/or if the missing navi disk has anything to do with the cd player. can someone help me in anyway?