Lights dimming after I installed subwoofer and amp in 2007 Hyundai Sonata 3.3L V6

45

Asked by Nov 24, 2014 at 02:01 AM about the 2007 Hyundai Sonata GLS FWD

Question type: General

First off, I upgraded my wiring with 4/0 welding cable as so; engine block to battery
neg terminal, battery neg terminal to frame, battery neg terminal to strut tower driver
side, strut tower passenger side to engine block, alternator positive to battery terminal
pos. I installed 0awg power wire (with fuse) to a 1000 watt RMS amp
(http://www.jlaudio.ca/jx1000-1d-car-audio-jx-amplifiers-99397) and have it grounded to
the frame (easily made via fuel sender access panel behind seats). I have the amp's
gain sensitivity set to 47.4 volts and am running a singIe sub
(http://www.jlaudio.ca/12w7-3-car-audio-w7-subwoofer-drivers-92112). My alternator is
stock 130amp, which i have been told by many people involved in high end car audio,
should be able to handle the load of this amp, yet my lights are dimming when I have
volume high and the subs hit. My battery was tested and it's at 700amps. Is my
alternator failing perhaps? Do I need a bigger battery? A secondary agw deep cycle
battery wired in parallel? A higher output Alternator? plz help and thanks in advance.

1 Answer

38,175

Update and upgrade your alternator. It seems like you did everything else right.

Your Answer:

Hyundai Sonata Experts

  • #1
    toDumbToNotKnow
    Reputation
    1,680
  • #2
    Tom Demyan
    Reputation
    1,510
  • #3
    dandyoun
    Reputation
    1,140
View All

Related Models For Sale

Used Hyundai Elantra
464 Great Deals out of 49,139 listings starting at $1,700
Used Honda Accord
539 Great Deals out of 104,189 listings starting at $950
Used Toyota Camry
743 Great Deals out of 73,783 listings starting at $1,195
Used Kia Optima
405 Great Deals out of 30,705 listings starting at $1,995
Used Nissan Altima
729 Great Deals out of 67,988 listings starting at $1,499
Used Honda Civic
363 Great Deals out of 50,738 listings starting at $1,499
Used Ford Fusion
649 Great Deals out of 62,881 listings starting at $800
Used Chevrolet Malibu
465 Great Deals out of 51,837 listings starting at $1,975
Used Toyota Corolla
613 Great Deals out of 67,219 listings starting at $1,000
Used Nissan Maxima
220 Great Deals out of 16,742 listings starting at $1,200
Used Hyundai Santa Fe
193 Great Deals out of 16,162 listings starting at $1,875
Used Mazda MAZDA6
174 Great Deals out of 13,196 listings starting at $1,000
Used Hyundai Tucson
233 Great Deals out of 27,552 listings starting at $1,500

Used Cars For Sale

2014 Hyundai Sonata GLS FWD For Sale
32 Great Deals out of 1,129 listings starting at $6,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.