The problem with the OBD2 ADX is that it is written for the ELM327 plugin, not for the ELM327 directly. TunerPro currently has some limitations that prevent its direct use with the ELM327 adapter, mostly I think because the ELM327 uses an ascii format and TunerPro doesn't have a conversion from ascii, so it was necessary to write a plugin. At least that is my impression. You would have to emulate the plugin instead of just using the OBD2 commands in order to use the existing ADX that is available on the TP web site.