Any word on chrysler 300 mopar 12 hemi? I've yet been able to use my $600 tuner for 6 months I've owned it.

Any luck on chrysler 300 mopar 12 hemi? I've had my $600 tuner for 6 months and have yet been able to use it.

2012 Chrysler 300 Mopar 12' Hemi 5.7L states doesn't support. Have installed the updates to my tuner from the website but when I hook it up in my car says doesn't support dcx_gas. CALID/PCM: 68188007AA. Please help