I have done a lot of research on a lot of OBDII packages and i actually own a version of digimoto and it is, for the price and options, the best package out there. these are just my thoughts.. i was really nervous about purchasing it but they were really good with communication and told me that if i didnt like it, they would refund.....i dont know.....just my thoughts.....I still own it.....and what is HAN authoarized mean??