My rearview mirror was dangling and my SMART husband cut the wires. Now my air, radio, and shift will not go into gear. I have to pt astraw in a hhole to start my car. Please help.

I drive mainly in an area with 60-65 mph limits. When I go out of town, I hit 70-75 mph limits, and that's when I get the severe rock and sway, enough to be scary. BUT, it doesn't always happen, only abotu 70% of the time.