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Thread: 2003 Audi A4 Quattro 1.8t

  1. #1
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    2003 Audi A4 Quattro 1.8t

    this is my second version. i rolled my 2000 a4 before i had everything finished, but luckily i was able to get all the parts out before they took it to the junk yard. i wasnt in a huge rush to get this one done so i planned a little more and everything went pretty smoothly into the new car.

    ill start with a list of the parts for the computer:
    via epia m10000
    xenarc 700ts
    panasonic uj-846 slim slot load cd/dvd
    80gb 2.5" laptop harddrive
    global sat bu-353 gps reciever
    D-Link usb wifi
    ione scorpius 2.4ghz rf keyboard
    generic class A usb bluetooth
    generic usb2.0 5 space pci card

    now for the car-specific parts:
    car2aux auxilary adapter
    Metra double din kit #99-9102

    as for cables, i got most of the from http://www.cablesforless.com if i didnt have them around the house.

    i think thats it for the parts, now for the pictures and descriptions.

  2. #2
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    pictures!

    first lets start with an outside picture of my car.




    this is the xenarc screen, bezel, and the metra kit. they will unite as one and look nice... hopefully.



    this is the bezel and the metra kit, i dont have any pictures of the steps from here to finished. sooo use your imagination i guess hehe.



    this is the screen finished and replacing the headunit. the color is a little dark. it matched perfectly in my other car but not this one. i used a black bumper coat spray paint from walmart. i also used a spot filler/primer from there too and it works great. i really recommend it for doing any screen fab work.



    the computer will be hidden behind the little part with the grille. there is a ton of space back there. plenty room for the computer. i had to ghetto rig a way to hold it securely in there and i couldnt get pictures but it fits and works.



    now for the fun part! figuring out how to get sound from the computer to the speakers. i decided i was going use the stock headunit, speakers, amp, wiring, etc. and just get an aux adapter. the headunit works without the front faceplate on and there is plenty of room to just push it back and fit the screen in front of it. i had to take the whole cage of the headunit apart which was basically just taking out a lot of screws. after the cage was apart it could slide back far enough for the screen to fit in front.


    here is a picture of the headunit with the face plate off.



    this is the plug that goes out from the headunit to the amp and speakers. the aux adapter has a plug that needs to plug into the left part of this. so i just cut this plug in half with a dremel to get rid of the left part that has no pins and is going to be in the way of the other plug that needs to go in.



    this is after i cut the plug in half. the blue plug goes to the car2aux adapter. you can see how they both fit in there at the same time. they each have a tab that clicks in so there are not real loose or anything.


    the car2aux adapter will work even if you have an indash cd changer (i do). you just hit the cd button, then hit it again and it will look for an external cd changer. the car2aux adapter emulates an external cd changer and it has a set of rca's that you can hook up to anything.

    a problem i came across is that when you turn the car off, then back on, the radio turns down to 10, which isnt very loud. you can kind of fix this by holding down the menu button for 2 seconds, then push the menu button again until you get to on-volume (i think) and use the right turn knob to go to 15 (as high as it will go) and just leave it there. so when you turn the car off, then back on, it will be set at 15. then i just use the computer to adjust the volume after that. 15 with the computer at full blast is pretty loud so it should be good.

    another problem i came across was the headunit was working fine with the car2aux but then all of a sudden it would jump to the 6disc in dash changer... i have no idea why it kept doing it so i just unhooked the cd changer (which was one ribon cable that just pulled out) and now it works fine... no idea why, but it works.

    here is a picture of the headunit with the 6 disc in dash cd changer take off of it. with the cd changer out of there it is MUCH easier to push it back further. that is the back of the xenarc to the right.



    here is what is left of the headunit. it is tipped down and forward so there is more room for the screen. the two white plugs on the bottom are where the face plate plugs in if i ever need to plug it in and change a setting. or the battery dies...



    here is a picture of the screen working.



    and another.



    picture of the cd/dvd slot load in the glove box. i had to dremel out the hole in the back a little so the cables would fit better. i used double sided indoor/outdoor carpet tape to hold it to the top.



    this is the rf keyboard. it works great and is small and really light. good range too.

  3. #3
    Newbie Postman's Avatar
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    Wow! Nice work. Haven't seen a Symphony HU hacked yet. Are you actually using the am/fm of the HU and controlling it via the LCD?

  4. #4
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    no i am just using the HU to power the stock speakers. it is on cd changer mode, the am/fm does not work. i was just starting to look around for usb am/fm receivers.

  5. #5
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by ssmiley1 View Post
    no i am just using the HU to power the stock speakers. it is on cd changer mode, the am/fm does not work. i was just starting to look around for usb am/fm receivers.
    May I suggest the HQCT if you are in North America, and the HQCT-i if you are in Europe/Australia

    And good work on the install.
    Fusion Brain Version 6 Released!
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  6. #6
    FLAC Sal R.'s Avatar
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    Good stuff.

    I thought about doing what you did w/ my Symphony HU, but I didn't want to lose my OEM HU in case I wanted to go back to stock.

    Not to mention and I would not have enough room to stuff the screen AND a hacked up HU.

    Also, if you're up to painting your bezel again, look up SEM black trim paint. Pricey, but real good stuff.

  7. #7
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    I didn't want to lose my OEM HU in case I wanted to go back to stock.
    it really wouldnt be too hard to put the HU back to stock. i made sure to keep all the parts and screws. it came apart pretty easily. no permanent modifications. except for cutting the one plug in half but that wasnt being used anyways.

    thanks, i will look up the SEM black trim paint too, this color is starting to bother me.

  8. #8
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    hello to everyone, i have a audi a4 2003, where is the factory amp for the front speakers?

  9. #9
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    the front speakers are powered by the headunit. the rear speakers are powered by an amp that is behind the little grille in the trunk on the passenger side.

  10. #10
    Newbie Postman's Avatar
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    Quote Originally Posted by VA4LIFE View Post
    hello to everyone, i have a audi a4 2003, where is the factory amp for the front speakers?
    /\ What he said, UNLESS you have Symphony with Bose, then the center and fronts are powered by the amp in the trunk.

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