Yup, that's broken. What I find difficult to believe is that this was broken off by BestBuy during the install and they couldn't be tossed to tell you about it! If I were you I would go and get your money back. ALL of it.

Now: how to go about fixing it. It is going to have to be dismantled and the connector replaced. Contact me with a PM.
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One of the few remaining Mk1 owners... #00015