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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 it stalling.

What could be the problem? Before the install the car ran smoothly.
 

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Are you bumping the music? If so.. The amp is pulling too mich current from the battery and causing the lights to dim. Thats normal reallly. But if you dont want that to happen.. You might want to invest in a very deep cycle battery or a capacitor.
 

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No.. It will just charge the battery as it should. Actually, right now youre putting a strain on your alternator.
 
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