Breaking in cables with FM static

The white noise from FM occurring between stations with the muting off contains wide spectrum information that could be used as you suggest.

Reproducing this sound through the amp and speakers is not necessary unless they are the intended components for break in. There is no risk to any equipment other than the amp and speaker. Even then requiring uncomfortably high sound pressure levels.

Many break in discs, such as the one manufactured by Purist Audio contains a variety of tones and noises that accomplish the same results in a more efficient manner.

In any case, it's best to mix music sources in addition to the noise to get the best results.

Brian wants to break in speaker cables, so he's gonna have to put up with some noise alright.
Could build yourself some 4 ohm dummy loads with power resistor networks vs. driving the speakers though.

I had not thought of that Bob, that would work just as well while maintaining peace and quite in the living space.

Why don't you just listen to some music, it will break in the cables and you get to LISTEN TO MUSIC, not static?

To clear a few things up, I am breaking in speaker cables, so the amp must be on. Two, I am not listening to the system 24/7, (I sleep at times); I have read that the white noise can speed the breakin process, so I thought I could do so at night. My concern is, can this constant white noise damage my speakers in any way? I have been running music from the tuner all night.