Why does my trunk mess with my subs when its closed?

If your trunk is messing with your subwoofers when closed, it could be due to vibrations or resonance affecting the sound quality. The trunk can act as a sound chamber, amplifying certain frequencies or causing rattling noises. Additionally, if the subs are improperly installed or if there are loose components, the closed trunk can exacerbate these issues. Ensuring a secure installation and using sound-dampening materials can help mitigate these problems.