DV7 second hard drive problem

I just got a DV7t-4000 with a 500gb hard drive with the hope that I could put in a second hard drive. HP told me it was totally possible, I just had to buy this super simple mounting kit. So I did (not through them, because $50 is a ridiculous amount to pay for that), and was all excited that I could still use my old WD Scorpio. But I have absolutely no idea where I'm actually supposed to connect this hard drive.



Here's what I'm looking at when I open the bottom:





And here's the hard drive just laid in there. My question is, where exactly am I supposed to plug in that SATA connector that's circled in red?





There's only two mounting kits that I could find for the DV7, the mylar/SATA one that I got, and a basic metal bracket version. Neither seem like they would work with my case. I was able to open up a DV7-3000 series laptop and it was pretty clear where the second hard drive goes. This, however, is a mystery.

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