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

35

Asked by Nov 24, 2014 at 01:35 AM about the 2007 Hyundai Sonata GLS

Question type: Car Customization

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.

2 Answers

35

bought a kinetik HC 1200 powercell and ran parallel with stock battery. Problem solved

Where were you able to fit a 2nd battery?

Your Answer

Hyundai Sonata Experts

  • #1
    toDumbToNotKnow
    Reputation
    1,590
  • #2
    Tom Demyan
    Reputation
    1,330
  • #3
    dandyoun
    Reputation
    1,100
View All

Related Models For Sale

Used Hyundai Elantra
497 Great Deals out of 42,513 listings starting at $1,995
Used Honda Accord
1,092 Great Deals out of 60,890 listings starting at $1,099
Used Toyota Camry
1,039 Great Deals out of 72,820 listings starting at $295
Used Kia Optima
422 Great Deals out of 29,004 listings starting at $2,450
Used Nissan Altima
944 Great Deals out of 74,672 listings starting at $1,300
Used Honda Civic
784 Great Deals out of 72,342 listings starting at $1,400
Used Ford Fusion
1,010 Great Deals out of 70,463 listings starting at $1,595
Used Chevrolet Malibu
1,055 Great Deals out of 70,545 listings starting at $2,499
Used Toyota Corolla
880 Great Deals out of 56,048 listings starting at $1,488
Used Hyundai Santa Fe
250 Great Deals out of 14,197 listings starting at $1,995
Used Nissan Maxima
286 Great Deals out of 23,077 listings starting at $799
Used Mazda MAZDA6
161 Great Deals out of 10,918 listings starting at $1,599
Used Dodge Charger
414 Great Deals out of 27,642 listings starting at $1,979

Used Cars For Sale

2018 Hyundai Sonata GLS For Sale
3 listings starting at $23,205
2014 Hyundai Sonata GLS For Sale
93 Great Deals out of 1,863 listings starting at $6,988

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.