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Thread: Can the same speakers be hooked up the an amp AND the HU?

  1. #1
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    Can the same speakers be hooked up the an amp AND the HU?

    Ok, this isn't so much a carputer question as much as a Car Audio question, but I hope someone can help me out.

    I am planning on installing a Carputer in my truck. Unfortunately, I have Onstar, and my turn signal chimes are run through the factory HU. SOO, what I would like to do is install the carputer as a second source, and leave the factory deck as is.

    However, this means I would have to run the speaker wire from my 4-channel amp (coming from the carputer) to the stock speakers, which will also be connected to the factory HU. Basically each speaker will have 2 sets of speaker wire running to it. Is that going to cause a problem?

    Unfortunately, my HU doesn't have an rca input.

  2. #2
    MySQL Error scott_fx's Avatar
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    you have two options:
    1) get the onstar interface from pac-audio and forget the stock head unit
    2) get an aux input adapter, if you're gm radio has cd changer control, then you can get aux input.

    the way you described could cause damage to either your amp or your head unit. if you could get a line level 'mixer' then you could do it that way, but it doesn't seem optimal.
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  3. #3
    FLAC J187's Avatar
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    You might have 3 options.... In April, car2Pc will be releasing 05+ GM PC adapter. www.Car2Pc.com. I'm waiting for it. What vehicle do you have.
    Its not the cards you're dealt, its how you play the hand!

    Quote Originally Posted by ryuandwings View Post
    Where can I get a roll of tin foil?
    I been looking for that all over the net, but I can't find it.
    Please help.

  4. #4
    MySQL Error scott_fx's Avatar
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    i stand corrected.... 3 options
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    Phaze TD1500 ~> Seas g18rnx/p
    Zapco Ref 500.1 ~ 12" tc-9
    Behringer DCX2496 ~ Envision Electronics psu
    Transflective Xenarc

    My Car Pc Install
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  5. #5
    FLAC sdashiki's Avatar
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    this isnt all because you want to hear your turn signal bing bong, is it?

    if you had the chance to mute that, wouldnt you?

    though, the OnStar itself, goes thru your speakers, so youd need something or its useless!
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  6. #6
    FLAC J187's Avatar
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    I'm sure the concern is for any and all vechicle systems that go through the head unit - depending on the year and vehicle, that could be a LOT! On my GMC Truck, there is not way in hell I'm losing my factory HU it controls ridiculous amounts of things in my truck. My onstar, hands free calling, XM, the radio, steering wheel controls INCLUDING all of the Gas mileage computer displays, odoms, settings, personalization, chimes, etc. etc.
    Its not the cards you're dealt, its how you play the hand!

    Quote Originally Posted by ryuandwings View Post
    Where can I get a roll of tin foil?
    I been looking for that all over the net, but I can't find it.
    Please help.

  7. #7
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    Thanks for all the input. The truck is an '06 Hummer H3, so just like J187's truck, pretty much everything is running through the HU.

    I like the idea of an Aux. inpute... I don't know why I didn't think of that. The HU is XM ready (no XM installed) so it seems the Aux Input should be an option. Any idea on where I can get one of these adapters? Thanks again for all the input!

  8. #8
    MySQL Error scott_fx's Avatar
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    i think www.pac-audio.com has them for your truck. but wait for the car2pc adapter if you can. that would be ideal
    New System in progress:
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    Phaze TD1500 ~> Dynaudio MD130
    Phaze TD1500 ~> Seas g18rnx/p
    Zapco Ref 500.1 ~ 12" tc-9
    Behringer DCX2496 ~ Envision Electronics psu
    Transflective Xenarc

    My Car Pc Install
    My Boat Pc worklog

  9. #9
    FLAC J187's Avatar
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    VAN, providing the car2pc will be availble full feature for our trucks, it will allow not only audio integration, but also full control over track and volume through the HU Buttons and the steering wheel controls. I don't think its even more expensive than PAC units.
    Its not the cards you're dealt, its how you play the hand!

    Quote Originally Posted by ryuandwings View Post
    Where can I get a roll of tin foil?
    I been looking for that all over the net, but I can't find it.
    Please help.

  10. #10
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    Yeah... it certainly looks like I'm going to wait and get the car2pc adapter... any ideas if it will work w/ a laptop?

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