John007

Ok, everyone I have a problem with my navigation system... I have a 2003 lexus sc430 which uses the 2nd/3rd gen navigation disk. So long story short I accidently order/ bought a 4th generation disk for my lexus sc430... well I don't want to get into details, but I tryed to return the disk back to lexus and you guys know how that works they wont let you return the disk... so now I am stuck with a 300 dollar disk and I can't use it... Does anyone know how I can get this disk to work on my 2nd/3rd gen navigation system? Or knows how I can modify the disk and make a bootable disk for my car??? This really sucks... Any suggestions would help