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Thread: Power Options

  1. #11
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    Quote Originally Posted by rickster
    I said that because Opus who makes the power supplies recommend it. Depending on what you want to run, you might be pulling too many amps over the factory wiring.

    Ahh. Ok. Well then, I guess I better check out that option. I think I'm gonna try to get the touchscreen to be professionally installed. I'll ask the guys that do it, if they'll run that ground line for me (assuming I can find a place that would be willing to install it).

    Thanks!

  2. #12
    Variable Bitrate rickster's Avatar
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    The ground just needs to go to any metal part of the car body work.
    The Permanent live needs to go to the + side of the battery
    The acc is just used for a voltage change so you can use the stereo one.

  3. #13
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    Quote Originally Posted by rickster
    The Permanent live needs to go to the + side of the battery one.
    Oh...So that doesn't come directly from the headset connector either? Darn. Another confusion of mine. I thought the permanent +12 was the standard connection to the headset unit.


    On a side note: Have you guys been to www.Xbox-Scene.com? It's for modding an Xbox. What's really cool about it though is that there is a section of tutorials written by the users. They go step by step with pictures and everything on how to accomplish a certain task. The upside to it is that you'll get less questions. The downside to it is you'll get more noobs joining your clan than you may want. But man...I'd love to use one for this right now. If I had a step by step totorial to follow on how to handle the power issue, I'd do it myself.

  4. #14
    Variable Bitrate rickster's Avatar
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    Let me see what I can do.

  5. #15
    Jesus Freak antimatter's Avatar
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    You need to find a friend that can help you out that lives near by. Where do you live?
    -Jesus- King of Kings Lord of Lords

  6. #16
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    Quote Originally Posted by Etno
    Oh...So that doesn't come directly from the headset connector either? Darn. Another confusion of mine. I thought the permanent +12 was the standard connection to the headset unit.
    You're not getting this clearly. The stock head unit connector on your car has: 12v line from the battery, 12v acc line, ground, lines out to the speakers (usually 4 pair), and probably other wires for various other functions.

    You cannot draw your power from this connector because the wire is not thick enough for the amount of current you will have to draw, you will end up burning out the wire and possibly starting your car on fire. This is why you must run large cable 4-8 gauge from your battery. You only need to run the positive wire (+)(12v)(red) because the negative (-)(ground)(black) is connected directly to the chassis of the vehicle, so the entire metal frame of the car acts as one big ground wire. This is why you can connect the ground to (almost) any bare metal on your car.

    When installing your carputer, you will need to identify: the acc line, and the 4 PAIRS of wires heading out to your speakers. You will have to either A) Tap these lines, B) Find a corresponding plug or C) Cut the connector off altogether. I suggest C. But you must make sure that you TAPE OFF ANY UNUSED WIRES (with black electrical tape) and LEAVE NO WIRE EXPOSED.

    Now, in order to identify which line is which, you will need either a volt-meter, or multi-meter, or a 12v test light. Since you seem to be technologically uninclined, i suggest the test light. They only cost a dollar, and their operation is simple. You connect one end to a ground and the other end is a probe with a light in it. When you probe a voltage source, the light lights up. You could also connect the wire to a positive line and probe for a ground, but you will not be doing that.
    -----
    Now, with the test light, connect the wire end (usually has an alligator clip) to some bare metal someplace on the body of the car. Turn the ignition on (engine does not have to be running), and begin probing the wires if you find one that lights up the light, then shut the ignition off, if the light goes dark, you have found the acc line. If the light stays on, it is the 12v (positive) line, but you won't be using it anyway. If it is not the acc line, turn the ignition back on and move onto a new wire, and so on, until you identify the acc (accessory) wire.

    NOTE:Red wires are almost always 12v positive wires while black wires are almost always negative ground wires.

    Make sure you identify the 12v positive, the negative ground, and the acc lines and exclude these wires from the next test. Also tape of the 12v positive and ground wires because you will not need them, as you will be running new ones.
    -----
    You will now be finding the speaker wires. Use and AA battery and find any two of the remaining wires and touch one to each end. If you guessed right, you will hear one of your speakers make a scratching sound. Make note that this is a pair and which speaker it goes to, and continue on with the wires that are left until you have identified all of the wires going to your speakers.

    Note: Stock speaker wire pairs are usually different shades of the same color, so try those first if applicable.

    Tape off any wires you have not identified after this process because you will not need them.
    -----
    This is it for identifying which wire is what. But you will need a lot more info in order to complete your install.

    Quote Originally Posted by Etno
    On a side note: Have you guys been to www.Xbox-Scene.com? It's for modding an Xbox. What's really cool about it though is that there is a section of tutorials written by the users. They go step by step with pictures and everything on how to accomplish a certain task. The upside to it is that you'll get less questions. The downside to it is you'll get more noobs joining your clan than you may want. But man...I'd love to use one for this right now. If I had a step by step totorial to follow on how to handle the power issue, I'd do it myself.
    The reason there is no step by step tutorial is that everyone wants something different, as well as the fact that this is is an advanced modification to your car...and it is generally expected that you have some car audio and or electronic background.

    But everyone starts somewhere so just keep posting and i'll do my best to help.
    Da_Kooz

  7. #17
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    And really, learn how to solder. It's not scary! It's pretty cool - you're melting metal and fusing stuff together. Now that's manly!

    It's easy. Especially for what you need to do. You would mainly just interested in soldering one wire to another, not sensitive electrical components that can get fried if you heat them too long.

    Step one: Go to Radio Shack and purchase a 35-45 watt soldering iron.

    Step two: Read this http://www.epemag.wimborne.co.uk/solderfaq.htm

    Step three: Cut a couple of speaker wires in two. Strip back the insulation, twist them together and use a vise or a clip to hold them in place. Then heat the snot out of them and apply the solder. Practice a couple of times. Now you're soldering!

    This is a good skill to have if you're going to hook up an Opus or a some kind of power supply to your car. This wire from your battery, for example. A soldered connection won't vibrate loose and should have lower resistance than if you twisted the wires together and used a wire nut. Solder it!

    I almost forgot - get some heat shrink tubing from the Shack when you buy the soldering iron. Slip it over the soldered joint and flame it up with a grill lighter or a match. It will shrink down and insulate your connection nicely.

    Part of the hobby is learning new stuff. This skill is SIMPLE to pick up. Way easier than figuring out what DLL is causing a conflict when you're coding.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  8. #18
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    Wow....You guys really rock. What a helpful forum!

    Thanks a lot everyone!

    I get married tomorrow, so the future Mrs. isn't allowing any future projects to start up until after then. But as soon as this whole "Wedding Thing" is out of the way I can get back to the important stuff, like GPS for my car

    I'll practice some soldering. I've done it before, I was just very hestitant being that we're talking about my Car's battery. But, I'll grab a couple of friends that are as clueless as me and together we'll make a clueless bunch that has a 50/50 shot of having a working car with a 'puter inside when we're done.

    Thanks again everyone!

    (Massachusetts by the way)

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