Jim P, you are an electrician. Exposed NM, like hanging from a garbage disposer, is a code violation, no? AC is ok clamped to the wall, correct? Romex/nm needs to be physically protected,Not exposed around here. Run the ac into a metal 4sq box where it comes out of the wall with an outlet,Then run an appliance cord from disposal to it. Of course if that existing mess was code when built its a little tough to make them change it now,Other than maybe clamping it to back of cabinet.