I removed my dash for some major body work.  So of course all the cables for heater/ventilation are nicely exposed.  Mine have never been lubricated; I think now is a good time.  Any tips on what to do or what not to do?  I am thinking to insert the red tube on a can of spray silicone into sheath end, wrap with some tape for cleanliness purposes, and give it a couple shots.  I will lubricate pivot points of controls with a drop or two of oil.  I also plan to replace foam pads on doors with either felt or neoprene foam.  Wondering if anybody has experience in this?