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Pioneer IP bus hack confusion

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  • Pioneer IP bus hack confusion

    I am about to do the aux in hack for my pioneer DEHP4300R. I have found the diagrams from searching but there are 2 different schematics. On one diagram the pin on the middle row is used for the common ground/left channel -. But on the other it is used for left channel +. Which diagram is correct since I read that some people were having problems with distortion and the input being too quiet.
    Diagram 1
    Diagram 2

    Cheers

  • #2
    hey buddy i dont about your second diagram but surely i have used the first one in my car 8650 pioneer and it works great ,,,

    mastero

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    • #3
      cheers

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      • #4
        First diagram is an error...go with the second one bc it's straight out of a pioneer cd-rb20 schematic. I have used it myself and it works too.
        04 Acura TL w/ core2duo 2ghz laptop w/ 1gb RAM on a docking station.

        Fast car, fast PC. ;)

        http://www.arcdesigns.net/carpc/

        My TL CarPC ver2

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        • #5
          dont know about the first (havent tried it) but the second worked for me
          time for the sig:

          '00 VW golf TDI upped to 130 HP - 18" RS 6 wheels - liliput 7" tft in indash housing - epia 10K - SB audigy - caliber 1 fahrad CAP - RF punch amp - hollywood 1.6K mono amp - boston acoustics pro - RF 10" DVD sub

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          • #6
            I posted the 2nd one way back it works well. I also have a picture that can clear it up a bid that I created looking at the real deal.... I am having problems getting into my mp3car site so I cant post the picture right now but if someone else wants to host it I can email it to you. [email protected]
            -+[MP3PC]+-

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            • #7
              To help clear this up (and since I couldnt find a definate answer anywhere on this forum).....

              I installed a Pioneer Head Unit with my old JL-Audio speakers into a mates car on the weekend ready for a mp3car system too and was looking around for all info here.... this was my result -
              • Both diagrams listed above work. BUT (and a big but) the SECOND diagram results in a much quiter output sound, so I used the FIRST diagram (Arby's one). Im guessing that this is deliberate for different versions of Pioneer CD-changers?
              • The AUX mode does not enable automatically, which cause me alot of trouble. I assumed that with the headunit detecting a ground on the two return audio pins that a new option would appear. After alot of scratching heads and another search I found a post from Maestro saying that you need to hold the FUNCTION key for 4-seconds with the power off to bring up a hidden menu and enable AUX mode. We didnt have a FUNCTION key on our headunit but played around with the main keys and found that the button that changes the FADER/EQ/BASS/TREBLE/ETC was the equilivent of the function key - and worked a treat....
              • Ensure you ground the ground wires back to the chassis of the head unit to get a good quality signal. I soldered directly to the IP-BUS pins on the back (I have a thin soldering tip, steady hand and a few hundred hours PSX MOD chip experence - so I am used to fiddly soldering work!) and used heatskrink tubing over each wire once soldered to avoid the chance of shorting - due to close distances between the IP-BUS pins...

                hope that helps clear things up once and for all...
              Project - GAME OVER :(

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              • #8
                Aux-mode enabling is in the manual.

                A guy in sweden sells theese, they're $37.5 each...

                I coulnd't find any reseller of the original one, so i got one.
                they were 3 internal cdrom audio connectors on top of each other glued together, with the center hole drilled up to fit, and shrinktubing around it. When I got it, I couldn't believe it was so easy/cheap made, but it works, and thats enuff for me

                -
                My cars
                -

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                • #9
                  Originally posted by jol
                  Aux-mode enabling is in the manual.

                  A guy in sweden sells theese, they're $37.5 each...
                  <sigh>

                  The things I wish I'd thought of....

                  When I first tried it out, I found it was very quiet, but that's partly what the rest of the crap in the CD-RB20 circuit is for.

                  Dave

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                  • #10
                    Crutchfield has one for $29 that's a 3rd party IP-Bus cable, professionally made. Works great, less filling. Also less likely to come loose or screw anything up because they use a REAL IP-bus plug. search for Cruthfield number: 469PiOPRCA

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                    • #11
                      Hey a while back i used the 2nd diagram for my pioneer deh4150 head unit and i found it very quiet too. How can i make it so it isnt as quiet.
                      Thanks
                      http://austmp3car.tk

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                      • #12
                        Originally posted by Holden__V8
                        Hey a while back i used the 2nd diagram for my pioneer deh4150 head unit and i found it very quiet too. How can i make it so it isnt as quiet.
                        Thanks
                        use the first one!!!
                        Project - GAME OVER :(

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                        • #13
                          No worries. Thanks magnetik
                          http://austmp3car.tk

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                          • #14
                            goodstuff cleared my orig question up anyway think mine worked best with the second diagram first one was quiet. I got 4300r modal

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                            • #15
                              What if I wanted to use the controls? How do I use the Decks controls? Anyone know which pin outs are controlled by the front deck?

                              Mg.
                              Just your friendly neighborhood computer specialist.

                              2002 Pontiac Trans Am WS.6
                              Silver/Black
                              Looks like new... Wanna know why they call me "Crash"?

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