Nothing like spending money I dont have for a product that wont work. Then spending money on tunes that I can't write? Man WTF is really going on? MVPI3 and TDN is not working for me.. Been spending several days trying to get this to work.. Maybe need to return this equipment.. Can anyone help i have a 2018 mustang Im trying to write my paid for tunes to. but i get the writer x7X error code every time... been 4 days now.. Support message me every few hours but How im suppose to figure this out when we both lost! I thought this was a reliable company (not saying its not but my experience is jaded) with years of experience. I just want to load my bought tunes up in my car with the new hardware/software i purchased. ARRRRRGGHHH