The SL-30 is 11 inches deep, according to Aircraft Spruce. The subpanel sits only 9 inches back from the panel. How on earth are you supposed to put something like an SL-30 in an RV? Is this depth typical of most NAV and NAV/COM units??
Either slam it in there with a really big hammer, or do what everyone else does - simply cut a hole! This might be the first hole you cut in the sub-panel but it likely won't be the last!
Thanks! i guess cutting a hole is the obvous answer! Actually that makes sense... if I cut the holes just right, the subpanel will provide additional support for the back end of the radios.
Either slam it in there with a really big hammer, or do what everyone else does - simply cut a hole! This might be the first hole you cut in the sub-panel but it likely won't be the last!