So, I've been doing a good bit of research into this and it seems as though the most likely culprit is a bad satellite receiver or TCU. I don't believe my X5 has the satellite receiver, so I'm leaning towards the TCU. I do want to clarify something though with the attached picture. I believe I have the TCU marked correctly, but I'm not sure what the other thing is in front of it? Amplifier?

Also, where is the satellite receiver located?

Lastly, the fiber optic wires to the TCU have the red light, but only for a second or two, then it disappears. And the red light does not appear every time I disconnect it.

Thanks!

Sent from my SM-N950U using Tapatalk