2004 Lariet with electronic climate control. I have no heat or air on any level. Display shows that the fan should be on but nothing. I've been doing research and seeing blower resistors but I don't believe mine has one. Would the speed control still be located behind the glove box and possibly I'm just missing it? I'm wondering if this is in relation to another recent problem I've been having where I have a 50/50 chance when I change the volume on my steering wheel controls whether it adjusts volume or changes channels. Seems to be some sort of miscommunication going on there.