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2G No power to speakers

Posted by 91dsm, Jul 7, 2020

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  1. 91dsm

    91dsm Proven Member

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    Perkasie, Pennsylvania
    I've tested my stock head unit and an aftermarket one with the metra harness and I have no sound from my speakers at all. I've checked both fuses and speaker wiring. Could this be the stock infinity amp that went bad ? If so is it easier to bypass or replace these ?
     

    Street Build 254  1

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  2. TK's9d2TSi

    TK's9d2TSi Supporting Member

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    Cincinnati, Ohio
    Most likely the factor amp. You can use a 12v battery to check the speaker(s). It should thump once as soon as you apply power. Idk if you can bypass on the factory head unit but you sure can on an aftermarket.
     

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    2000 Jeep Cherokee Sport - Classic
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    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

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    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
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  3. Widgmaster

    Widgmaster Supporting VIP

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    Sarnia, ON, Canada
    Have you checked the settings of the radio itself ... You may need to adjust the unit so it knows it plays through the infinity amp.. ? Also check your grounds..
     

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    1977 Glastron Aqua Lift
    awd · automatic · Misc Vehicles

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    2002 Dodge Dakota Extended Cab
    rwd · automatic · Misc Vehicles

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    2001 Mitsubishi Eclipse Spyder GT
    fwd · automatic · Misc Vehicles
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  4. 91dsm

    91dsm Proven Member

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    Perkasie, Pennsylvania
    Im ditching the stock head unit and ill be using my new double din. I just need another metra adapter to bypass the amp ?
     

    Street Build 254  1

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  5. 91dsm

    91dsm Proven Member

    109
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    Joined Sep 12, 2014
    Perkasie, Pennsylvania
    Both radios work fine. The aftermarket one is brand new. I dont see any lose grounds either.
     

    Street Build 254  1

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  6. Helaman-99

    Helaman-99 Proven Member

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    Joined May 10, 2019
    Spokane Valley, Washington
    My speaker system had an issue with the factory amp that had gone bad. The speakers would play for a bit (super bad quality tho) and then the head unit fuse would blow. So I bought an amplifier bypass wiring harness and it worked just fine. I’d try a bypass or get a new amp. My head unit sends 45 watts to each speaker and has been more than enough, so unless your building a big system you’d probably be better off just getting a bypass rather than a new amp. Hope this helps :)
     

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    2019 Mazda Mazda3 Hatchback
    awd · automatic · Misc Vehicles

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    1999 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  7. JPenny

    JPenny Proven Member

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    Corpus Christi, Texas
    Bypassing the factory amp is not hard at all and if you have any spare speaker wire and a little wiring knowledge it's not hard..gotta run wire from the white gray green and purple spk wires of aftermarket radio to the output wires of the amp.
     

    Attached Files:

    177  6

    1996 Mitsubishi Eclipse GST
    manual · 2G DSM

    Street Build 2K  4

    1997 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  8. Dusty Landrum

    Dusty Landrum Supporting VIP

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    San Francisco, California
    I would recommend using a 9v battery to “pop” the speakers if you can so its lower power to the speakers, but yeah bypassing the factory amp is not too bad at all.. I believe you can buy a harness that directly does it OR just jump the input to the output but don’t forget the tweeter wires as well! They will need a crossover so they do not get sent low level signals and blow them.
     

    Street Build 557  3

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  9. luv2rallye

    luv2rallye DSM Wiseman

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    Minneapolis, Minnesota
    I've also noticed on the stock Infinity amp under the passenger seat, sometimes the 6 pin DIN cable comes partially out which turns off the speakers.
     

    3K  0

    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
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  10. 91dsm

    91dsm Proven Member

    109
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    Joined Sep 12, 2014
    Perkasie, Pennsylvania
    So I bypassed the amp today and everything works. I feel like the sound is kinda weak though. I have an android head unit so I can probably tweak it somewhat. Did anybody else notice it sounding considerably worse without the stock amp or is it just me ?
     

    Street Build 254  1

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  11. luv2rallye

    luv2rallye DSM Wiseman

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    Minneapolis, Minnesota
    Amps provide the extra needed power for bass (low frequencies) that speakers (especially larger ones) require that head units can't provide.
     
    Last edited: Jul 15, 2020

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    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
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