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The Stereo Integrity 2006 Audi A4 Avant IB-24 Stealth Install

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58K views 260 replies 49 participants last post by  hparker  
#1 · (Edited)
I'm going to preface this thread with the fact that I'm NOT a shop.

I don't run a business, I'm just lucky enough to have enough garage/shop space at my house that will allow me to build/house my own cars and work on cars for friends.

The cars I get are typically cars that are the big projects that sit in the back of a regular car audio shop and collect dust. I have one that was shipped down from PA because the owner had spent so much time and money on the vehicle only to be disappointed in both the sound and quality of work. He knows I have a high level of attention to detail and won't let anything leave that I'm not happy with.

Other times I'll have people contact me to do things that they've been told can't be done.

When we first moved to the place (a couple of years ago this past March) I had a guy that wanted to have a vehicle delivered here. Told him to wait because I needed to get the wood shop built.

He didn't wait. lol I ended up going through his build while trying to make progress on the wood shop. Then the Audi showed up.

So before I go too far...

First few pics are of "the shop". This is the first floor of the house.

That's the front door on the right. The glass door goes upstairs to the living area.

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From the front door you see the 3-car bay.
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From the back corner of the 3-car bay looking toward the front door. you can also see the 2-car bay with the yellow-ish lighting in the distance. The area on the left of the image is where I planned to put the wood shop. In this state the place was a 7-car garage.
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The garage sink, some cabinets, and a 1/2 bath is down here. The walkway to the left of the sink/cabinet area was originally a doorway. The current 2-car bay was a carport when the house was built. The open wall on the left was an exterior wall when the carport was open.
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This is a shot standing inside what I planned to be the wood shop and looking out into the rest of the garage.
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Looking from the front of the 2-car bay towards the long, open wall and the space behind it where the wood shop would go.
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Getting tools situated and started work framing the new walls.
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I decided to go larger than my original plan and 45 one corner of the shop. That gave me the ability to put a large double door opening in. Thanks to COVID the doors and windows I want are out of stock.
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So I'm re-uploading images that disappeared and now it'll only allow 10 images.

There's a full shop build album here. It's still a work in progress.

So anyway, that's a quick rundown of "the shop". I had two cars brought here before I could get fully set up. The Audi is the first "big" project. That's the focus of this thread.

I call it Batdog Garage because my service dog is a German Shepherd the Batdog nickname stuck.

Audi info incoming...
 

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#50 ·
Those coilovers will likely need new springs. Sure you can crank down adjusters to compensate for a loss in ride height, but you may well end up with coil bind at that point. When the car is complete it would be best to get the corner weights and order the appropriate springs that take into account the proper spring rate, collapsed, and extended lengths of the shocks. This will ensure the best possible ride while avoiding the possibility of damaging the current springs. Depending on what springs are currently on the car of course. My guess is the rears will be the primary concern. Just my .02...

The car looks like a really fun and interesting project! Can't wait to see the finished project.
 
#63 · (Edited)
Making progress and shooting video. Working on multiple things at one time and shooting/editing two separate video projects on the car along the way.

Last thing I did today was start the process of stripping the factory interior panels for the left and right sides of the cargo area. Fun stuff.

Run the 3" Roloc to start the process of sanding into the factory carpet and, if you're lucky, you'll sand an "edge" in the carpet that will allow you to start pulling/tugging/yanking it off the backer. If not, just keep running the sander. Fibers everywhere. Wearing a mask and running air filtration for sure.

When I get these rebuilt the entire interior will get new upholstery from the window line up as well as the entire cargo area.


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#64 ·
Not sure what is happening, but pictures are not coming up :(

Sent from my Pixel 4 XL using Tapatalk
 
#67 · (Edited)
Dropped the Helix Director into the factory ash tray/cigarette lighter location.


Had to rebuild the entire unit to house the big Director. Also sent the Director housing through the table saw to cut it down to just the face and mounting points.
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Progress shot. Still a bit more filler work to do here.
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Tuning port for the Director.
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The exterior surfaces were shot with SEM texture coat followed with satin black.

The recessed area where the Director sits was flocked in black.

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#71 ·
Dropped the Helix Director into the factory ash tray/cigarette lighter location.
Knowing how much room that tray takes up and the size of the director, this looks really cool, being able to close the lid still is excellent. I managed to get a USB from the Kenwood into there (you probably found the hole!!) but that was about the extent of my abiility.
 
#73 ·
Been fighting getting the headliner and A/B/C/D-pillars wrapped.

I ordered what was said to be the closest match headliner material on the market and...it wasn't. Was way too light.

Contacted the vendor and he said that it must've been mislabeled.

So now we have a new material for everything from the window line up in the car. :cool:

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So now it's time to get all of the upholstery and finishing details sorted out.

Lots to do still.

Details matter.
 
#74 ·
I ordered what was said to be the closest match headliner material on the market and...it wasn't.
I spent who knows how long looking for a carpet match, contacted Audi asking for a name and color code, they told me..... "beige". That's it, super helpful!!

That interior is going to look excellent once finished! New fabric with all the deep cleaning, going to be really nice!!
 
#77 ·
Nick called last night:

"Hey, I realized that the 24th is my anniversary. I can't go to SVR."

Since it's his first anniversary I understood.

He told me I'd have to take the car.

With my back injury and associated sciatica making the trip would be a (literal) pain in the ass. It's 11 hours plus stops from here to SVR.

So we decided that the Sundown Show on August 14th will be the first show for the car.

That will also allow me to slow down a bit, not push too hard with the back pain, and make sure everything is done to the level that I want.

So for those that want to see it, the Sundown Show will be the first event.

I know Mic, Ian, and Bertholomey will be there. I'll be there as well. Will be good to get out of the house and see folks again.
 
#78 · (Edited)
Working through pain. I said I was going to stop two hours ago, but this is the final stopping point for the day.


Head unit went in for the final time today. It's a Kenwood 9906XR.

Fixed some wiring issues I found. First was that the head unit never had a ground through the connector. It would only power up when the radio antenna was plugged in. 😂

Confused the heck out of me. I hadn't touched the wiring behind the HU because it was working when it came in, but I plugged it in to check reverse camera input and when it wouldn't power up I knew something was (obviously) up.

First step of troubleshooting is to check power. It had power, but no ground.

After finding that there was no ground I wondered how it had been powering up in the past. Yup, antenna connector.

Fixed that, verified steering wheel controls worked then reinstalled the HVAC controls.

In these images you can also see the M3 Carbon in the kick. It's on-axis to the listening position. :)

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Since the car didn't have a reverse camera, I added a reverse camera that replaces the factory liftgate switch and license plate light assembly.

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The sunroof cover was wrapped in suede and reinstalled.
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Then I installed the sunroof, adjusted it so it sits flush with the roof of the car, and then ran it through an operation check to make sure it functions properly.
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#80 ·
Working through pain. I said I was going to stop two hours ago, but this is the final stopping point for the day.

Head unit went in for the final time today. It's a Kenwood 9906XR.

Fixed some wiring issues I found. First was that the head unit never had a ground through the connector. It would only power up when the radio antenna was plugged in. 😂

Confused the heck out of me. I hadn't touched the wiring behind the HU because it was working when it came in, but I plugged it in to check reverse camera input and when it wouldn't power up I knew something was (obviously) up.

First step of troubleshooting is to check power. It had power, but no ground.

After finding that there was no ground I wondered how it had been powering up in the past. Yup, antenna connector.

Fixed that, verified steering wheel controls worked then reinstalled the HVAC controls.

In these images you can also see the M3 Carbon in the kick. It's on-axis to the listening position. :)

Since the car didn't have a reverse camera, I added a reverse camera that replaces the factory liftgate switch and license plate light assembly.

The sunroof cover was wrapped in suede and reinstalled.

Then I installed the sunroof, adjusted it so it sits flush with the roof of the car, and then ran it through an operation check to make sure it functions properly.

Nice progress.

I kind of LOL'd...It looks like you just press fit that M3 into a giant marshmallow in the kickpanel, ha! Where can I buy those? :p
 
#79 ·
Odd about the head unit, glad it was an easy fix! Not gonna lie, before Nick was buying it from me I just threw the stock head unit back in there and some awful Boss speakers so it had something for any other buyer. So, apologies for any crap you might find.

That's an excellent head unit though, I miss it terribly now that I'm stuck with the OEM Volvo unit.

Can't wait to see this at Hickory, booked the Friday off work to prep and head down.
 
#84 ·
I’m anticipating my long demo in this Audi for sure!
I'm sure demos will be long since he can play the front with three different sets of drivers.

Dang...I was looking forward to seeing you guys at SVR. I'll have to see if I can swing the NC shindig
You know, not going to SVR paid off. I was in the garage Monday night/Tuesday morning until about 12:30 doing math because a crazy idea came into my head when I was mentally sorting out the build for the cargo area of the car.

Texted Nick about the idea and he HAD to call to discuss it. 😂

Initially he was hesitant, but when I explained why I wanted to do what I was suggesting, he agreed that it made sense.

So...time to order more parts so I can make a simple portion of the build into something that's overly complicated.
 
#90 ·
So here's change 6,472.

While working in the back and moving the 1/2" MDF floor panels Ian made I decided that manually lifting those pieces out of the car and putting them back in sucked. It's going to suck even more when I build the new floor from steel. Not only that, but after all the work put into the build it just didn't seem right to force Nick to have to remove and re-install the floor panels every time someone wanted to see the 24...and people will definitely be wanting to see it. 😂

I thought something automated would be a better solution.

So I got the geometry and correct stroke length sorted out for some linear actuators that will be controlled from a key fob. These actuators will raise and lower the two floor sections of the cargo area above the subwoofer and the 200.4.

The actuators will bring both floor sections to a 50 degree angle.

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#97 ·
Started welding the floor together. I cut the piece at the rear to the proper length, but screwed up and cut the center sections 1/2" too short.

Fortunately I can still use that material as bracing through the interior of the floor. Was looking forward to having this big piece fully welded and cleaned up today. *kicks dirt


Clamped the pieces in place on the welding table.
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Welded and cleaned up. Still need to clean up the inside corner at this point. I only hit the bits I could knock down while it was still clamped to the table.
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Test fit in the car.

You can see the center pieces are 1/2" too short. I want to get correct length pieces in the center before I weld the curved rear section (at the back of the car) to the rest of the floor.
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#98 ·
Good news. The linear actuators arrived. These have the motor built into the housing so they're more compact than units that have motor above/below the worm drive.

These guys are 1 3/4" square and will lift 44lbs each.

The smaller one is a 2" stroke, the bigger one is a 4". They both travel at 1.8" per second.


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