I posted a thread late last year after my 2005 Expedition was totaled and I was curious about switching my Gryphon CTS to a replacement vehicle. I've found a new truck and was wondering if I could use the CTS in new truck while I wait for Bill to rewrite the tunes for the new truck? I understand the custom tunes that were on it won't work but would it revert to the canned ones when hooked up or would I need to update it online to wipe the old tunes until the new ones are done? Thanks for all the help!...Gerald