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Thread: My Second Project: Jetta TDI PC with full Audio System incl. Sub

  1. #1
    FLAC PhilG's Avatar
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    My Second Project: Jetta TDI PC with full Audio System incl. Sub

    I decided to post up my latest project, I bought this Jetta TDI from my brother to use for business travel as I have parked the truck for now pending engine repairs (it’s work log is here: http://www.mp3car.com/worklogs/14240...cab-build.html).

    Here’s the Car:

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    I installed these two Alpine amps, 2 Type “R” Alpine 6.5” in the front doors , a Pioneer sub and the car PC for my brother while he still owned it a couple of years ago. He just bought a new TDI with the factory BT system in it and did not want any of this stuff anymore so it stayed with the car.



    The original Sub box I build for him:



    This is an older Car PC that he bought used from the classifieds which came with a with 7” High Brightness 7” HDMI Lilliput mounted in a By-Byte dbl DIN bracket. He added a Sirius radio tuner with Mitch’s translator box to it but that was about it.



    I made a couple changes in the system after I got the car, I added a Clarion EQ up front to give me a hardware volume control, took a couple of 6.5” mid bass Infinities that came out of my truck and added them to the back doors. Plus took the X-Fi soundcard from the truck and added it as an external sound card. I also added a powered 6 port hub in the glove box.
    I ran RCA cables from the EQ up front to the back as well as a USB cable for the hub:




    Here you can see the 7” Lilliput plus the EQ fit perfect in the dash:



    I did a little sound deadening up near the fire wall to shield some engine noise:





    I installed a microphone in the overhead Sunroof control panel:







    More to follow shortly...
    Last edited by PhilG; 12-18-2014 at 12:39 PM.
    My 2007 Ford F350 Work Log located HERE

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    FLAC PhilG's Avatar
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    I had a new spare 10” RD Sonance Sub laying around that was shipped to me wrong when I ordered the 12” version of it for my truck project so I decide to upgrade the sub from the Pioneer 12” and make some more room in the trunk. Plus I had all of the supplies laying around to do it and the F/G resin was left over and getting old from another unrelated project.
    So here we go:


    Taped off the area:



    Added Foil to make release easier given the size and corners involved in this layup:



    Waxed the Foil:



    Got the supplies out:



    Precut the glass Mat as best as possible:



    Layed it up:



    Released it:




    Trial fitted it after removing all tape:



    Built a wood perimeter and screwed the F/G back to the frame:



    Add more glass and resin to seal the back to the side frame:



    Trial fit the box:



    Created an MDF front panel and routed the hole for the Sub



    Added more resin to smooth out back and added about 3 layers of resin/mat to the inside of the box to seal all seams:



    Wrapped the box in Ozite Carpet...(Yes I even had a roll of that in stock that I never used for a passed project)



    Added a bit of sound deadener right behind where the sub will mount and ran wires for the dual voice coils plus added a speaker terminal cup for connection:



    Added a Steel Chrome Autobahn Grille ( I’ve have a couple of those brand new lying around for years) and some LEDS behind the grille and wired to the trunk light which is now more or less shielded by the sub box:




    ephect likes this.
    My 2007 Ford F350 Work Log located HERE

  3. #3
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    Cool build. Did you buy the carpet locally?

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    Maximum Bitrate Dave One's Avatar
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    I love the hidden array microphone. I think I may have another go with mine .
    Vauxhall Astra SXi Car PC installed.

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    FLAC PhilG's Avatar
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    @thedivision: I really can't remember for sure where I got it, I've had it sitting in the bag for probably 5 or 6 years. I bought it before I started the truck project then never used it. If I had to guess, I would bet I bought it here: http://www.smartshoppersinc.com/. I'm in Louisville, Ky once or twice a year and I always stop in and grab some supplies. There should be no problem finding it here in Canada though.

    BTW, I didn't mention in my build but here is the product I used to adhere the carpet to the box: http://www.dap.com/product_details.a...=46&SubcatID=8,

    I brushed it on then used the roller that came with the sound deadening material to stretch out the carpet, worked perfect. Some say you have to shoot it from a gun to get a good job, I now can disagree with that, just be careful to brush on a medium uniform coat and don't leave any puddles that could soak through the carpet.
    My 2007 Ford F350 Work Log located HERE

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    FLAC PhilG's Avatar
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    @Dave,

    It was a tight fit once the handle to manually close the sunroof was clipped back in place but it did fit. The fabric did not lay down perfect but it was in tough shape to begin with. I may do an interior upgrade in the spring and replace some of the tired panels. The key was to ensure the two holes that were drilled were perfectly sized so that the mic friction fit into the holes, no brackets, glue, etc required.
    My 2007 Ford F350 Work Log located HERE

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    FLAC PhilG's Avatar
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    Well, I solved a problem that has been plaguing me since I installed the new sub, the MRP-M350 amp has been cutting out then stopped working all together. The first problem I found was the fuse-distribution block had shorted out and blown the fuse so I repaired that, then the amp worked again...but still cut out when cranked up.

    This 10" sub was an incorrect shipment to me when I ordered a 12 with 2x4 VC's, so I just assumed I received a 10 wired the same way. Based on my assumption, I wired them in Parallel. So today I pulled the terminal cup out and checked each set of leads going to each coil, they were 2 ohms each so I actually ended up with a 1 ohm load, not many amps up to the task of driving that! Just goes to show you what assuming does....I should have checked before installing.

    Anyways, I rewired the 2 coils in series for 4 ohms so all if good now. The amp does support a 2 ohm load but with 2x2 VC's that's going to be pretty hard to achieve, either way it hits plenty hard in the truck of a Jetta, I'm satisfied with it, the rear licence plate rattles like hell...

    Next up for repair is the line in for the Sat Radio, it's introducing some nasty noise into the system so I will have to look at how I wired that and see what can be improved upon.
    My 2007 Ford F350 Work Log located HERE

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