First trip with the in-laws in back the rear climate control is blowing hot air! Temp was set to 68 & my first thought was there is something wrong with compressor. Turned it down to LO & air started cooling, now I'm thinking sensor is bad. After reading manual I look at sensor closely & wire is loose behind, not clipped in. Plugged that in & now it operates normally. What other plugs/ harnesses did they not get clipped in? Already heard of a few...