Can anyone tell me where the XM "receiver" is located in the 2017 Silverado? I need to get to the end of the XM antenna/plug to use it for my portable XM receiver. I have seen past web posts "behind the glove box" (for previous years to 2017), but mine does not look anything like those misc videos. I just need to know where it is... and how (easily) to get to it. I love my new truck! Thanks Very Much! DJ