"Pop`" wrote in message
news:Kkqbh.16012$Uz.7258@trnddc05...
You're fine, and you've got a plan! It'll work fine for you as you wrote
it.

The yellow black won't matter either, especially if you connect say the
yellow to the red at both ends (demarc where it comes in, and to your
jack).
If something seems odd because you've got an old phone or something on
it, just reverse them and see if that helps.

Good deduction work,

Pop`

Thanks.