Hi Gents ! I'm a newbie and will be ordering the MPVI2 system soon for a 2016 Dodge Charger that has already been HP tuned by the previous owner (and doesn't have the OEM Dodge PCM) and I was wondering what are the first things that need to be done after taking the MPVI2 out of the box. Do I register the MPVi2 first or synch the MPVI2 ? Also, do I buy the 2 credits I need when I purchase the MPVI2 from the HP tuner site or after I get it and when registering it ? Thanks, and if there's anything else you think I need to know, please advise.