G20 BMW 3-Series Forum - View Single Post

Pacman123 · 11-04-2019, 09:01 AM

I have the HK system in mine, but I want to add an external subwoofer because I like bass music.

Is it possible to add one to the HK system? I was thinking of getting it custom molded into the trunk.

11-04-2019, 09:01 AM	#11
Pacman123 Private First Class 44 Rep 114 Posts Drives: Mazda 3 , BMW M340i Xdrive Join Date: Oct 2019 Location: PA iTrader: (0)	I have the HK system in mine, but I want to add an external subwoofer because I like bass music. Is it possible to add one to the HK system? I was thinking of getting it custom molded into the trunk.
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