speedometer

I was messing with the speedometer in my car today because it was not working. When i reached up under teh dash the cable came out in my hand very easily but now I can get it to plug back in. Is there a certain way it has to go in because I dont want to hurt anything.
Thanks

 

Should just push in and screw the outer cover down.

 

If it came out easily that would maybe explain why the speedo wasn't working. The end of the cable has a plastic fitting with tabs that you have to squeeze in to disconnect and sometimes to connect the cable.

 

I have been looking at the speedometer today and there is a plastic clip on mine but i dont know if it is all there or if there is a certain way to place it. does anyone have a picture of what a good one should look like?

 

I was able to get the speedometer to work finaly so now hopefully it stays in place.