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Discussion Starter · #1 ·
I,ve been seeking a lot of information everywhere and most of them said on the mazda3 2014 -up (third gen) with a non bose car stereo system with no infotaiment only a radio for head unit they said better not to uprade the factory amp that is under the passenger seat even if we install a loc (line output converter to switch to rcas, to plug to an aftermarket amp because mazda doesn't say how powerful the factory amp is is it doable to uprade it . . thank for some answers....:surprise:
 
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