I just purchased a used bike and am in the process of taking it apart and found a little purple box wired up under the rear seat, it looks like a programmer but i cant seem to find anything about it online.. someone please let me know what exactly it is if you have seen it before

 

It's for the lights.

Here's a link;

https://www.jpcycles.com/motorcycle-parts/badlands

 

Ok thats good to know, makes since now that its in there because it has aftermarket headlights and tailights also