Powerline Ethernet - Does it affect A/C noise?


So I'm thinking about installing some Powerline Ethernet network bridges so I can get to some hard-to-reach places in my house. I was wondering if anybody had experience with this and how it affects A/C noise...does it make any audible difference with audio equipment? I would hate to counteract all the goodness that my Shunyata Pythons do with powerline ethernet stuff.

Any ideas? Any experience?
rhmmmm
Unless you live in apartments you would rather want to snake cat5 cables to your room. It's much better performing and probably not more expensive than buying powerline Ethernet hardware.
Oops wrong animal. I meant to type fish, but my brain mixed them up after hanging up the phone to a plumber for slow shower drain problem.
Ha, "snake" is okay too. Yeah, I should have specified better - we are going to be in an apartment. Not sure if I can drill and I'd rather not run wires down the hallway.