try pulling the negative battery cable and let sit for 15 minutes before plugging it back in. granted this will reset everything
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or look at the fuse diagrams and pull that fuse
i had some one my cobalt but i dont remember where i bought them from. google cobalt lowering springs or cobalt dropzone springs. should get something that way
will it work? yeah but you get what you pay for. if your going for sound quality dont buy it, save for a few more weeks and get a nice one. if you want something just better than the oem than go for it