More wiring help needed!

Here is one connector that I have no idea what it is supposed to go to. There is a pink/black, white, white/black, and orange wires going to it.
I have nothing that connects to it so I believe I'm missing a plug that I'll have to purchase.

Here's another view of the connector.
I have one more thing I need help with. I'm not sure what this goes to either

This set of wires has one black/white wire that ends with a slip-on connector. I think it's for ground. And then the black piece has an orange wire going to it. I have no idea what this black piece is though it doesn't look like a regular connector.
Any help is appreciated guys. If any pictures would help more I'll provide them! I just want to clean up this headache!



