Rikkadog

Hi All,
Just picked up a new project, a 1995 Grand Cherokee Limited. The front drive shaft and the automatic temperature controller were laying in the back seat. Two questions:

1. The controller doesn't light up at all and nothing works. It has 2 connectors on the back, a large blue one and a small yellow one. I connected the large one but can't find a plug for the small one. Is that supposed to be connected? Does it have a fuse somewhere?

2. I replace the U-joints on the drive shaft and am ready to reinstall it. Does the cross brace need to come down?

Thanks