I just got my '07 si and noticed a bit of quiet "ticking" as I was driving. I realized that it was happening when my wipers were on intermittent, at all notches less than "fastest". The dealer said this is normal because the wipers are essentially "turning off and on" on those lower speeds and they make a ticking sound when they turn on.

Does this sound legit/common to everyone else?

 

mine do that, its the power being shut on and off like he said.

 

That's the relay opening and closing.