It's been a while since I did the swap, but it seems to me they got a goofy type of antenna connector on them now, but my memory is kinda fuzzy. Might be worth it to just wait until you get the truck back, and check it yourself. The panel surrounding the radio pulls off easily, and all the wiring behind it is long enough to move it out of the way without disconnecting anything. There's LOTS of room in the dash on these things, see if you can reach around behind it. Worst case scenario, it's 4 screws and the radio is out... It's be surprised if it took you more than 5 minutes to check it with pulling the radio...

Might be the areas where you guys are at, but i wasn't impressed with the reception of the 6-disc, the Pioneer is much better. But, we dont exactly live close to the radio towers either...