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

35

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

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

35,025

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

Your Answer

Hyundai Sonata Experts

  • #1
    toDumbToNotKnow
    Reputation
    1,570
  • #2
    Tom Demyan
    Reputation
    1,330
  • #3
    dandyoun
    Reputation
    1,080
View All

Related Models For Sale

Used Honda Accord
1,046 Great Deals out of 61,437 listings starting at $999
Used Hyundai Elantra
494 Great Deals out of 41,619 listings starting at $2,300
Used Toyota Camry
1,092 Great Deals out of 70,593 listings starting at $750
Used Kia Optima
473 Great Deals out of 28,433 listings starting at $2,200
Used Nissan Altima
1,101 Great Deals out of 73,984 listings starting at $875
Used Honda Civic
819 Great Deals out of 76,774 listings starting at $900
Used Ford Fusion
1,059 Great Deals out of 76,106 listings starting at $895
Used Chevrolet Malibu
1,201 Great Deals out of 76,840 listings starting at $1,500
Used Toyota Corolla
889 Great Deals out of 64,958 listings starting at $999
Used Hyundai Santa Fe
254 Great Deals out of 14,039 listings starting at $1,475
Used Nissan Maxima
341 Great Deals out of 23,514 listings starting at $1,550
Used Mazda MAZDA6
164 Great Deals out of 12,973 listings starting at $1,395
Used Chevrolet Impala
593 Great Deals out of 34,529 listings starting at $1,250

Used Cars For Sale

2018 Hyundai Sonata GLS For Sale
3 listings starting at $23,205
2014 Hyundai Sonata GLS For Sale
106 Great Deals out of 2,213 listings starting at $6,995

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.