Fuck car alarms
Doing foul crime
I'm that nigga wit'cha Alpine
Sold it for a six-o, always let tricks know

from Ice Cube (Ft. Das EFX) – Check Yo Self Lyrics on Rap Genius

By stating that he has your Alpine stereo despite the car alarm, Ice Cube is showing is disregard for peoples' perceived safety. This can be viewed as a metaphor for him being able to do other “foul crimes” without fear of repercussions.

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