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  1. i installed amp and sub to factory HU..now the lights dim..help!!

    2004-2009 Mazda3 Audio & Electronics
    I installed mtx 6152 amp....i used loc to tap the front left and right speakers from the HU. Sound works superb, but when i took the car out of my garage and drove a few meters, i felt the car being off a bit. The lights were dimming a bit. i just quickly came right back to my garage, fear of...
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