Entune 3 wiring question

Good evening!

I'm reposting this here hoping that someone would have some insight to help me out.

So I'm going to upgrade to Entune 3, and prior to the install, I'm trying to tie up some items on the truck punch list.

Since I've had to reinstall the Entune 2 (long story), my radio time never set, and I didn't get a GPS signal. I thought it was going to be a problem with not having the antenna properly seated in the rear of the radio, but I pulled it out and everything is seated normally. Bringing up the diagnostic menu on the Entune 2 gave me the following message:

B15C1 - GPS Antenna Connection Malfunction Break

Clearing the code and retesting immediately brings it back, so it's antenna related.

So here are a couple of questions:
1. Could someone idenfity on the attached photo which connection is the GPS antenna? I'm under the impression that it's the blocky white port on the right of the radio, approximately 1/2 way up.

I'm fully aware of the irony of moving to 3.0 to get Carplay with Waze and Apple Maps and wanting the stock nav to work. I know that every time I start my truck, I'll see the unset clock and it'll make me crazy- It's just the way I am with this truck.

 

I believe it’s this one I have circled in red

for the wire itself, you can actually see the antenna up high inside the dash mounted on a metal plate. Just follow that wire to ensure you have the right one. I think it’s the white connector
XM is the wire with the black connector and it should go to the black port on the bottom module

don’t ask me why the colors are reversed

 

Thank you very much.