180 degree is out of phase. 1 degree is out of phase. What's your point?
If you could put the wire 180 degree out of phase, you'd have near
perfect noise rejection. But any phase difference helps suppress induced
noise.

yes but when someone refers to "out of phase" most people assume 180. Thats the
point. If thier is a phase reverse switch on some component and it is not
labeled then what degree do you assume? 180.
And how often is induced noise a problem in car audio? Not alot in my
experience. Were talking less than a 20ft run anyway. And were not talking
about massive power sources, So I still think that twisted cables are not any
better.

Les