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  1. Alpine Head Unit Instal

    General Car Audio Discussion
    I am installing my Alpine head unit today and have a few quick questions. - 2003 Dodge Ram - Head unit only, no Amp (yeah, I know) - Metra Harness has yellow (constant) with 15 amp fuse, red (switched), black (ground) 1) Is there any reason i need to connect the HU directly to the battery (I...
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