Re: Drilling into ceiling?
Reply #26 –
One of the less obtrusive (but not inexpensive) conduit solutions it so start with a walnut (or whatever wood your coach is made of) 1X2" or 2x2" (depends on size/number of wires). Route it out (even a table saw works fine for this) to form a "U". Finish to match interior and mount with screws at each end-- finish with bung plugs of same material.
Been there, done that.