Every time I turn on my truck, my seat warmers and steering wheel warmer comes on. Not a big fan of having my junk cooked, so I'd like the default to be off, and I'll turn them on as needed. According to the manual disc, it's one of the options on the radio (I have the 5.0). But I can't see to find it. Is it just not there, or am I looking in the wrong spot?