I don't miss that aspect of AZ living...

Does your system still use R$12? or have you or a PO converted it to 134?
is the condenser CLEAN CLEANCLEAN? aux fan working? have you gotten the back windows tinted? I would seal up that sunroof...
good luck with the outside air in issue, sorry I do not have more info in that area.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!