Today I went to replace a blown fuse and when I cut my car on to test it out of nowhere my aem standalone made a loud buzzing noise. The car starrts fine and everything seems to work fine but it just buzzes and Im worried it might be going out or something


*also on a side note the fuse I replaced was for my cigarette lighter that stopped working randomly after using it and after I replaced fuse it did not fix the problem. Any ideas on this?