Does anyone know why my car makes this weird bass noise when I idle sometimes or when my revs are going down. It all started happening ever since I installed 2 12’s kicker comp r and it’s sometimes really loud and it won’t stop. Thanks for your help

 

Sounds like something related to the install of the subwoofers lol.

 

Woah that's a crazy coincidence, you hear more bass after you installed 2 sub's.