I have 29.3 ace with axera radio reaches up under dash there were 3 bolts on each side of wood grain plastic frame that has radio ac & heat controls had to carefully work it out and everything comes out with that wood grain panel I checked all the connections and there is a box that has all cables from cameras connected to it tighten all of them put everything back together works great connections were loose hope this helps some radios have a trim around them that snaps off and u can get to screws to remove radio I had to pull whole assembly out
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