Ground Zero GZCS 100MB Mercedes 2 Way Component Speakers for GLC C E and S ClassGZCS 100MB Car specific 100 mm 4 2 way speaker system Car specific 100 mm 4 2 way speaker system for Mercedes 2 way speaker system Made in Korea Aluminum cone Rubber surround Aluminum cast housing Neodymium motor 25 mm 1 silk dome tweeter Car specific connection The GZCS 100MB speaker system suits a wide range of Mercedes vehicles* without any modification of the original wiring or electrical system. The original speakers can be simply replaced