Maybe, and get a new friend or never gim him/her a ride again. How does it sound now? Listen to some moderate music that has a little bass one speaker at a time using your bal and fad controls. If it rattles or buzzes, give him\her the bill for new speakers.
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03 GT, STB, GM HD sway bars, 35% tint, GE893(37watt)fogs, Flowtech Terminators, 180 T-stat, ZZP DP & PCM, Ceramic PLOG & Crossover, 18" glasspack, 2007 17" Mustang Bullits 235/55/17 Pirelli PZero Nero, 12" R1 D\S rotors, gutted air box, GTP radiator