The AXX13-XSVI-5524 -NAV does have the correct connector in it, but comes with the extra box/ converter. The problem is I don't think either one is fully populated. J think the XSVI has more but still not all 24 PC.
Sure hope it works for you. I am just going off of what Metra tech support is telling me. I actually looked a little closer at my truck today. I do not have the Molex door plugs. Mine is just a rubber boot. I may pull factory wire from there back to the amp and run new wire to each speaker.
As far as running a LOC, I have heard too many people getting interference noise with them. That is why I am trying to use speaker level inputs. Yes I know it would be easier to splice in, but several years of technician experience tells me to never cut factory harnesses unless you absolutely have to....
I have been using LOC's for the last 10 years that I can remember without an issue. You can run your power from the battery down the passenger side, ground off to a rear seat post, hook your remote wire to the accessory power, and instead of cutting the connector, strip back the wire, and jump from them. As long as you do a good job splicing your wires, and use a good quality RCA to the amp, you shouldn't get any noise. A lot of guys just use butt-connectors to save time, and that's where the problems come in. As long as you have a good ground, and you don't take shortcuts, it should sound just fine.
Update on the AXX13-XSVI-5524 -NAV does not populate the entire connector hopefully the other one does, if not then time to locate some pins that fit and populate the connector with the missing wires if actually needed.