Not sure this is your issue but I’ll throw it out there for what it’s worth....
I was speaking to a guy recently with a Thor Class C and his factory GPS or Sirius / XM were not working.
Thor told him to take it to Ford. After looking at the rig, Ford told him it appeared that Thor cut the antenna cables while assembling the rig and there was nothing they could do about it.
I told him to call Thor and book an appointment at the Thor Service Center to let them deal with it.
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