replying to Steph Moss, Rick Smith wrote:
Best way I have found and have not had any problems on several jobs is to use
a quality inductive chirping electrical tester.. First go in attic and find a
connector wire with the thermostat a full high on panel and verify you get a
chirp there, then just simply go over the surface with the tester and find the
wire tracings.. Finally verify you have to positive chirping in area you want
to drill in and go for it.. You won t have any issues that way/ Just take your
time and verify it a few times just to be sure.


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