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  • Power Options

    Hey folks,

    I've done plenty of reading and searching on this site, and now I'm ready to ask some questions.

    First, I'm not an electronics guru or car stereo guru. I am a computer guru however (software developer actually). Because of this, I don't feel comfortable connecting wires to the car battery, or soldering wires to motherboards, or any other kind of custom stuff involving soldering irons. So, what options do I have for getting this thing installed? Can I:

    a) Get a professional installation and trust they'll do it the right way (and not get charged an arm and a leg for it)

    b) Connect it to the same power connectors a standard radio head unit uses (*most preferred method if possible*)

    c) Trust an inverter that uses the cigarette lighter (would need it for both the monitor and computer though).


    This would be for a mini itx board and a 7" touchscreen monitor.

    Thanks!

  • #2
    You can connect it to the wires behind your head unit! You will need a permanent 12V, ACC (or ignition live) and ground. You will need to use a dc-dc power supply like an opus or carnetix.

    Have a look in the forum topics for power supplies
    "A conclusion is the place where you got tired of thinking."

    Comment


    • #3
      This is great to hear. So, that's how the DC-DC power supplies work. So, I can connect it directly to the cable connector that would normally go into the car stereo head unit? That is sweet! And then I can connect the Monitor and PC to the PSU? Awesome! That's what I was hoping for.

      Ok, the only part I didn't understand was:

      Originally posted by rickster
      You will need a permanent 12V, ACC (or ignition live) and ground.
      Could you elaborate on this, and give more details?

      Thanks. I've been reading the forums like crazy, but when you don't speak the speak, it's hard to understand much of it.

      Comment


      • #4
        he means you will need the following three things:
        a permanent 12V to power it,
        the acc to tell the psu that the ignitions on,
        and a ground to complete the circuit.

        hope this helps.
        Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
        PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
        Toys:K8055 relay board, Elmscan OBDII

        Type-R Mini

        Comment


        • #5
          OK. I understand ya on that. (Let me preface that I'm sorry for my stupidy and lack of knowledge)

          Question is, does the car have the ACC, and ground as standard connectors? I.E., Are those normally connected to a stock stereo head unit? Or, do I have to splice or solder wires here?

          Thanks!

          Comment


          • #6
            you will not be able to plug straight into the stereo connector. You would need to tap into the appropriate cables. The cables you will need to tap into are the permanent 12V, Ignition Live and Ground. You could find these by using a volt meter.

            You haven't mentioned it but have you read up on the audio sections of this site. You will need to route the audio from the pc to an amp or head unit. The pc output voltage on the audio is very low so it will need to be amplified somehow.

            edit: sorry for the confusion
            "A conclusion is the place where you got tired of thinking."

            Comment


            • #7
              nope, the acc is on the headunit connector, that why it will turn on when the ignition gets turned on, as for the ground, you could connect it to the headunit ground, but if you connect it to bare metal on the chasis of the car that will work.
              Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
              PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
              Toys:K8055 relay board, Elmscan OBDII

              Type-R Mini

              Comment


              • #8
                You will be better of to use 8 or 12 gauge power cable and run the Permanent 12V straight to the Car Battery with an inline 15A fuse. You should also do this without the fuse for the ground but connect the other end to the vehicles chassis.

                You should also put an inline 15A fuse on the ignition live aswell.
                "A conclusion is the place where you got tired of thinking."

                Comment


                • #9
                  Originally posted by rickster
                  You will be better of to use 8 or 12 gauge power cable and run the Permanent 12V straight to the Car Battery with an inline 15A fuse. You should also do this without the fuse for the ground but connect the other end to the vehicles chassis.

                  You should also put an inline 15A fuse on the ignition live aswell.
                  Ok...That's when I get scared I'll probably try to avoid that if there are easier (and still safe) ways around it(like Dan_Wright's suggestion to connect it to bare metal on the chasis of the car). Thanks though.

                  By the way. I have read about the amp and sound part and I think I'm totally cool on that.

                  Thanks a lot everyone. Big help! Seems like the only relatively annoying part is the ground.

                  Comment


                  • #10
                    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.
                    "A conclusion is the place where you got tired of thinking."

                    Comment


                    • #11
                      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!

                      Comment


                      • #12
                        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.
                        "A conclusion is the place where you got tired of thinking."

                        Comment


                        • #13
                          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.

                          Comment


                          • #14
                            Let me see what I can do.
                            "A conclusion is the place where you got tired of thinking."

                            Comment


                            • #15
                              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

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