I am trying to add an HD tuner to my 09 as that is the only missing option I care about. I have picked up a used HD tuner and antenna splitter however I can't seem to find an any extra power or MOST connectors. My MOST bus is full. I think because I have Sirius and traffic info. My backup plan was to disconnect Sirius but the black plug male does not go into the female white plug of the HD tuner unless I break off some of the plastic. Any help would be appreciated. A picture of the mounted tuner may point me in the right direction as I am also unsure how to route the antenna wires. thanks

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