where is the a petcock valve on the radiator of this auto located on 2006 Scion xA

how much clearer can my question be

2 answers 1 comment
ah what car?
THE question is pretty clear , it's the SCION xA (2006) in the large print above the "Question: where is the a petcock valve on the radiator of this auto located"................This message was brought to you by the department of redundancy department. never mind........
DID you find it yet?(7/12/2012) curious.......If the rads' aftermarket there may not be one.