New alpine speakers just stopped working on one side of my car and don't know what to do

Just check the wiring connection from receiver to your speaker,try to interchanges the left and right or to one side and to other side,so we know that the speaker is the problem .If happens still only one side is working even you interchange,then the problem is the speaker. If happens the speaker from left to right is working then the right to left is not works then the problem is the one side of the amplifier section is defected maybe the IC chip is busted or just loose,crack or cold solder joint.If cold solder only then reworks the solder joints in amplifier section.Then if the speaker is defected just reworks the solder connection of the speaker only .If still not working even you resolder the speaker then thats is the time you replaced the speaker...

Hope this may help;

Regards,
VOTIT

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