Possible engine noise, with video. Please help!!

[08blackyari]

Hello All,

I recently bent my front right rim by hitting a curb pretty hard, which resulted in me changing the rim and all four tires (they were due anyways). Well, since I have a motorcycle I haven't driven the Yaris much since the rim was changed but noticed today, while at idle, that a strange noise was coming from the engine bay. I don't really want to say what the sound was, for fear of influencing your ear, so if you could please give it a listen and reply with some thoughts I would greatly appreciate it. http://www.youtube.com/watch?v=ARIigm4PlVE