[09A4 Quattro]

Hello everyone. First time poster - trying to restore an 09 A4 to some semblance of an adult daily driver after a teenager got their hands on it. Car is in remarkably good shape other than some strange electrical hacks. There are a couple of wires in the engine bay that are OEM but have been disconnected. I can’t figure out what they are for. Hopefully someone here can help me.
Thank you in advance.