when i bought my titan,since i had not read the owners manuel i asked the salesman to set the temp.on the mirror.he screwed around w/it fot about 10 minutes & said that it didn't have temp. on the mirror it was on the dash.he said some had it on the dash some on mirror.i tried to mess w/it one time on the mirror for about 2 or 3 minutes untill the phone rang.haven't tried it again.is he full of bullshay or is this right.anybody else run across this. thanks tomcat.