Car is a 1990 535i, manual, 7/90 build date. A/C compressor will not engage, even though the blue light on the dash lights up. Fuses are good. Thought I would check the compressor relay (K19?) but can't find it - doesn't seem to be in the main power distribution box on left side of engine compartment by firewall, nor in the auxiliary relay box just forward of there. Saw some documentation saying it's in the left side front kick panel behind the speaker, but there's nothing there.

Any ideas where this relay is?

- Dave