I have had lots of problems with the cameras and the radio. Most of them originally were a bad axxera unit. Then after the radio was replaced most became a loose fuse or the camera connector on the back of the axxera or the use/store switch being in store mode. I also have 2017 quantum. If the axxera is working well, check the other possible issues before drawing a conclusion. The dealer or an RV mechanic can fix the issue even if the wiring on the outside mirror was broken.
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