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SOS w/ Bluetooth failure plus no Sat can be ether one of those boxes is down. The fiber is in series so when one goes, they all go. Sat(iboc), SOS(TCU), usb(MULF) and so on. Do you have the USB in the arm rest and does that work?
In the trunk, pull the green and black fiber connections one at a time and look for the red light on the fiber side. If you pull the sat (left side of the trunk) and there is one red light in the fiber, the signal is passing through the TCU correctly. Reconnect and do the same thing for the TCU on the right side of the trunk. If fiber going to TCU is dark, sat or something else is not passing the signal.
CCC must be awake for the test to work.
Post a pic of what is under the floor of your trunk if what I said makes no sense.
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