Every Auto A/C system I've used has a sunload sensor in the dash. Both in my 97 Town Car, and my 2011 Crown Vic, its set it and forget it, unless I'm running c

Every Auto A/C system I've used has a sunload sensor in the dash. Both in my 97 Town Car, and my 2011 Crown Vic, its set it and forget it, unless I'm running cold or hot that day.