I just picked up an Intermatic wall switch timer, model EJ500C. I'm
installing(or trying to) into a 4-way circuit: three switches, and the
light.

Their install
instructions(http://www.intermatic.com/images/ins...ets/158SS11359.
pdf) simply say "For existing 3 switch installations replace one 3-way
switch with the timer and replace the 4-way switch with a 3-way switch"
Well, it doesn't say anything about what to do with the FOUR wires that
currently go to the 4-way switch once it's replaced with the 3-way.

I'm very handy, but I'm no seasoned electrician.. never been a fan of
working on the whole 3-way and 4-way circuits

Anyone had any experience in doing this? I have existing construction and
can't run any new wires without some major work.

Thanks!

Tim