Engine bay fuse box wire question
 

Hi folks, first time posting here! I have an '09 base model hardtop. Just finishing up a clutch job and am re-installing the ECU and fuse/relay box after removing for access to transmission etc from top. There is a red wire with a blue stripe that is supposed to be screwed down somewhere on the fuse box and I can't remember for the life of me where. It's not the large red battery cable. Any help would be greatly appreciated. Ready to get this job done and back to driving! I can post a pic if it helps.

https://cimg0.ibsrv.net/gimg/minicoo...885b77e17.jpeg

Thats an aftermarket cable, might be an alarm?

Might got to that power line or a ground under the box?

I was thinking alarm or amp or something like that as well. Everything reconnected and nothing seems out of sorts, so I'm riding with it. Thanks for the feedback everyone! More to come on other projects, I'm sure

Welcome!