I am finding that the AC in my 2004 Sti is a little weak (relative to a Lexus or BMW which pump out continously very cold air - especially the Lexus). The AC seems to alternate between moderately cold air and mildly cool air. Anyone else notice this or is my AC malfunctioning? The car only has 5600 miles on it. The outside temps in high 80's or lw 90's.