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2G Infinity Radio

Posted by 1999RSfwd, Oct 31, 2020

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  1. 1999RSfwd

    1999RSfwd Proven Member

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    Joined Nov 24, 2016
    Dresden, Tennessee
    Back whenever I bought my GSX, it had an aftermarket head unit in it. I didn't really like the aftermarket unit so I bought the unit below. And someone before me cut the factory amp out of the car (literally cut the connector and pulled the amp out). Luckily I still have the wiring for the amp, just not the DIN cable. Now the radio powers on OK, I just have no sound. And I was wondering if I needed the amp to get sound, or if there was some other way I could get sound to come out? (And if I needed the amp, would I need the DIN cable, or just the amp connector?)
    Thanks
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    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  2. Dusty Landrum

    Dusty Landrum Supporting VIP

    165
    83
    Joined Jul 15, 2019
    San Francisco, California
    Unfortunately you will need the amp to convert the lower level output of the radio to high levels needed to drive the speakers. Aftermarket radios have the amps built in which is why you can and should eliminate the oem amp. Try to get everything hooked up with the oem connectors and don't forget to solder and cover all the connections. No butt-connectors or crimp caps!
     

    Street Build 624  3

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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    1999RSfwd and 2Gjunkie like this.
  3. 2Gjunkie

    2Gjunkie Proven Member

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    Joined Aug 5, 2020
    Baltimore, Maryland
    If you don’t have the OEM connectors, Metra makes replacements. Would be a good place to start. And heat shrink tubing is your friend.
     

    Street Build 187  3

    1998 Mitsubishi Eclipse Spyder GST
    manual · 2G DSM
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  4. SwiftKidGSX

    SwiftKidGSX Proven Member

    96
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    Joined Jul 11, 2003
    Cerritos, California
    I have the amp if interested. PM me.
     

    399  0

    1999 Mitsubishi Eclipse GSX
    12.230 @ 112.160 · 2G DSM
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    1999RSfwd likes this.
  5. lasthope05

    lasthope05 Proven Member

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    Philadelphia, Pennsylvania
    You don't need the amp. Just wire them directly. You only lose the tweeters in the dash without the amp.
     
    1999RSfwd likes this.
  6. 2Gjunkie

    2Gjunkie Proven Member

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    Baltimore, Maryland
    Not on a stock headunit. The OEM outputs are low level. He’s have to crank up the volume and it would still just be a whisper.
     

    Street Build 187  3

    1998 Mitsubishi Eclipse Spyder GST
    manual · 2G DSM
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    ErikTande and 1999RSfwd like this.
  7. lasthope05

    lasthope05 Proven Member

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    Philadelphia, Pennsylvania
    It'll be little bit quieter but it'll still be fine and not as bad as you think. The stock amp runs in parallel to the speakers, vs in series, so it's not completely necessary and would be similar to cars without the infinity amp option.
     
    1999RSfwd likes this.
  8. 1999RSfwd

    1999RSfwd Proven Member

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    Joined Nov 24, 2016
    Dresden, Tennessee
    Thanks for all the help and feedback!! I bought a factory amp, a 6 pin DIN cable, and an 18 pin connector from Metra. Now I have another question, the amp has 18 pins, the new Metra connector has 14 pins, and the OEM connector in my RS has 16 pins, and there are only 14 wires on my GSX where the amp plug used to be. So am I missing something?

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    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  9. 2Gjunkie

    2Gjunkie Proven Member

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    Joined Aug 5, 2020
    Baltimore, Maryland
    I haven’t gone out to check mine, but it should be 16 at a minimum. Each of the 4 channels has a +/-, so 8 wires from HU to amp, then 8 wires from amp to speakers. I’m going based on memory though. Someone can correct me.

    The amp may have an additional couple for a power signal, but again, based on memory.
     

    Street Build 187  3

    1998 Mitsubishi Eclipse Spyder GST
    manual · 2G DSM
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  10. luv2rallye

    luv2rallye DSM Wiseman

    7,793
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    Joined Jun 7, 2003
    Minneapolis, Minnesota
    You said you bought an 18 pin connector from Metra but then say the new Metra connector has 14 pins - so which is it?

    I have the original 99 GST Infinity radio with CD and cassette head unit and amp under the passenger seat. The amp has the 18 pin speaker/power connector (probably like yours). 4 pins are for the 2 rear speakers, 4 pins are for the 2 door speakers, 4 pins are for the 2 front speakers, 2 pins for power, 2 pins for ground, 2 pins unused (pins 11,12).
     

    Attached Files:

    3K  0

    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
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    1990TSIAWDTALON likes this.
  11. 1999RSfwd

    1999RSfwd Proven Member

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    Joined Nov 24, 2016
    Dresden, Tennessee
    The Metra connector is listed as an 18 pin connector, but in the photo underneath the amp, it only shows 14 pins installed into the connector. So, I'm not sure if the photo is just a generic advertising photo, or if it will actually have 18 pins installed. I think they just call it an 18 pin connector, because the connector can hold up to 18 pins.
    Also, I figured out why my GSX only has 14 wires in the floor for the amp. Someone removed the 2 wires for the driver's rear speaker, and hard wired it, so that is why I'm missing 2 wires. And the amp connector in my RS looks the same as the one you posted, so I'll use that as a guideline.
     

    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  12. luv2rallye

    luv2rallye DSM Wiseman

    7,793
    702
    Joined Jun 7, 2003
    Minneapolis, Minnesota
    Yes connectors are always labeled by the number of pins they can hold.
     

    3K  0

    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
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  13. 1999RSfwd

    1999RSfwd Proven Member

    57
    28
    Joined Nov 24, 2016
    Dresden, Tennessee
    Makes sense, I guess I'll have to find 2 additional wires in my spare wires bin for the left rear speaker.
     

    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  14. 1999RSfwd

    1999RSfwd Proven Member

    57
    28
    Joined Nov 24, 2016
    Dresden, Tennessee
    Just an update: I got the amp wired in, and the head unit installed. Everything is working and sounding good.

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    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  15. IHeartMyHonda

    IHeartMyHonda Proven Member

    507
    76
    Joined Jul 12, 2006
    murfreesboro, Tennessee
    I still have that same radio in my Spyder and I love it. Did you swap your car from auto, or do you just have an auto center console?
     

    1K  1

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM
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  16. 1999RSfwd

    1999RSfwd Proven Member

    57
    28
    Joined Nov 24, 2016
    Dresden, Tennessee
    I knew someone would probably ask. I snagged it from an auto car from a local junkyard (a long time ago). My car came with (mostly) gray interior, and I'm going black. I still love the seats btw, now I just need the rears in black.
     

    Street Build 299  2

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 165  1

    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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