'95 XE V6 - A/C Failure

[aerobat66]

151k miles. A/C has been working perfectly since a couple of months ago, when the compressor failed to kick on.

Fuse is ok. Regfrigerant pressure is ok. Compressor comes on and system cools when I jump 12v to it. Low pressure switch is open both with engine off and engine running w/ A/C switch on. Shorting across the low pressure switch has no effect. All visible A/C system wiring and connectors appear intact and in good condition.

I'm suspecting some kind of mysterious wiring problem inside the dash, as the vehicle has been plagued with electrical gremlins the last couple of years.

Are there any usual suspected areas I've overlooked?

Thanks