This one pisses me off so much because it takes my car a few seconds to start playing music, and the buttons don’t work while I’m backing up because my laggy/buggy “infotainment” system doesn’t respond while the backup camera is active.

So I start my car, put it in reverse, and start backing out of my garage, only to have my ears melted by the previous driver’s listening preference, and I can’t even adjust the volume until I take it out of reverse.

No, you misunderstood. It’s five "nein"s. As in:

“Is it available now?”

“Nein, nein nein nein NEIN!”

Also, working upward, 3+2=5, “1”+5=“15”.

I wonder which “inspired” path it chose.

It was a load-bearing readme file.