A client from Manchester MD came to us for a speaker upgrade for his 2008 Chevy Cobalt. One of his factory speakers did not play at all. The factory speakers are made of paper and low quality materials, so after 5 years of use they were already failing. We chose to install a pair of Hertz Dieci coax speakers in the front doors. These speakers made a very nice improvement in the overall sound quality of the stereo in this Chevy Cobalt. The client could now listen to his XM Satellite radio and enjoy a more crisp and clear sound. We have speaker upgrades available for almost every vehicle on the road! Give us a call or Contact Us for more information about our Cobalt speaker upgrades. Of course we have speaker upgrades available for every vehicle.