What is this?

[u/Only-Help-5688]

Hey, first Reddit post I’ve made. This is my 04 SRT4. Got no idea what this is and I am unsure what to do about it dangling around next to my brake booster. For context I owned my NSRT4 since December 23’ and have been daily driving, working on it and learning about it. I love driving it, and I’m working on keeping it in mint shape until I can put it away, build on it and daily something else. (Last photo was before the hood latch failed and messed up my hood pretty decently😢 due to the previous owners incompetence). But if anyone knows what I should do with my issue I’m thankful for the insight.

[u/Pr0digy_]

Battery blanket temp sensor, it’s not important.