i'm awaiting approval from the admin team, so i can't post yet sadly.
what i've found so far is that megatune needs to be a specific version to setup the wideband outputs and that the latest firmware isn't adviseable.
i'm going to try to force older firmware onto the wideband and then use a different version of megatune to get it to communicate.
until i get approval on the forum, that's all i can do sadly.
i'l keep this updated.