I believe it is on the drivers side engine bay partition (thats where mine was). This is a part that fails due to poor design and may have been replaced.

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03 3.0 Alpine/Blk (sold) Sport, Prem, CWP, PDC, Xenon
10 35d Titanium/Blk - Sport, Lux Seating, Prem, CWP, Tech, Rr Climate, CA