WARNING: The procedure I used to do this will work on non sunroof cars ONLY. Until I find a way to do it with the sun roof, your SOL. Sorry guys. Also this is on an 03 model. I know the 07 - 08 have different overhead units so it may not work you as well.
This is a DIY for giving the ambient color look that VW's and Audi's have. It looks OEM and on a scale of 1 - 10 of hardness for this DIY, I'd give it about a 4.
Examples:
This will look A LOT better in person.
Tools:
Philips screwdriver
1/4" and 3/8" drill bit
Zip ties
Something flat to pry off the verhead light unit
Quick connects or electrical tape however you wanna splice it together
Wire strippers or splice connects
10mm pre wired diffused led - Need two but good to have extras for since they can be fragile
Red:
http://cgi.ebay.com/20-X-10MM-Red-D..._W0QQitemZ350265355123QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item518d712b73
Blue:
http://cgi.ebay.com/20PCS-10MM-BLUE...26389577QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c50563b49#ht_1245wt_941
White:
http://cgi.ebay.com/10PCS-10MM-WHIT...79171075QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c537b9d03#ht_1288wt_941
Green:
http://cgi.ebay.com/20PCS-10MM-GREE...28452138QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c5075b42a#ht_1029wt_941
Orange:
http://cgi.ebay.com/20-X-10MM-Orang...27054744QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item51911ea198#ht_1197wt_941
and Yellow:
http://cgi.ebay.com/20-X-10MM-YELLO...17861315QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item51909259c3#ht_1288wt_941
Procedure: ( I bought another overhead light unit to make a DIY with, but it was for a sunroof tib, I can't show exactly how to do it, but ill try my best to improvise.)
1.) Take the plat tool and gently pry off the over headlight unit. Once done, unplug it the wires to it.
2.) Next you'll want to remove every screw on there except the screws connected to the silver reflectors. There are 9 of them. One is kinda hidden.
3.) This should pop right out:
If you look at the unit, you'll notice, at least for us non sunroof guys, the two dummy switch spots. For sunroof guys, it sadly comes out since it's actual buttons for the sunroof. Here it is on a sunroof one w/o dummy switches:
4.) This next part, I'm gonna have to just run you through with as much detail as i can. What you want to do next, is drill with the 3/8" some room for the led. When you look down the dummy switch, you'll notice it is a skinny slit that leads to the curve of the dummy switch. You're going to widen that slit to fit the led in. It will act as the led holder. Make sure not to drill to far tho cuz you want the led to fit snug and you dont want to drill through the curve
5.) Drill a 1/4" hole in the curve. This is where the light will come through to sine in your cabin. and since the led will sit above the hole, it will hide the led from sight to give it an OEM feel like how VW and Audi's have. You can drill anywhere on the curve. I did mine straight down but you can have point towards you or the dash instead if you want. It will look like this: ( I have a border around mine that i made. Completely un-needed, just looks clean)
6.) Test the led for snugness and then test the led with 9 volt battery (works best and easiest) so see how it looks
7.) screw this back in place so it looks like:
8.) Next you'll want to connect some extra wire to the posi and neg led wires. You're going to be running these down to your cigarette lighter wires.
9.) Run the wires over the headliner to the pillar where you would mount mutli gauges. You'll have to pry the pillar plastic off. grab the wires and run down under your dash.
10.) Put the pillar plastic back on and run the wire under the footwell area. Use zip ties to make sure the wire doesnt hang down by your feet. Remove the center fascia and pull the wire through. Notice the cigarette lighter wires. You'll want to splice the wires into those wires for power.
11.) put the overhead unit back in place and enjoy how it looks. :3_winkthu
Here is what mine looks like:
Off
On
This is kinda what your cabin will look like at night
Let me know if you have any questions and I'll try my best to help. Sorry this isn't the best DIY but I know you guys can figure it out.
Feel free to give rep too
This is a DIY for giving the ambient color look that VW's and Audi's have. It looks OEM and on a scale of 1 - 10 of hardness for this DIY, I'd give it about a 4.
Examples:



This will look A LOT better in person.
Tools:
Philips screwdriver
1/4" and 3/8" drill bit
Zip ties
Something flat to pry off the verhead light unit
Quick connects or electrical tape however you wanna splice it together
Wire strippers or splice connects
10mm pre wired diffused led - Need two but good to have extras for since they can be fragile
Red:
http://cgi.ebay.com/20-X-10MM-Red-D..._W0QQitemZ350265355123QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item518d712b73
Blue:
http://cgi.ebay.com/20PCS-10MM-BLUE...26389577QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c50563b49#ht_1245wt_941
White:
http://cgi.ebay.com/10PCS-10MM-WHIT...79171075QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c537b9d03#ht_1288wt_941
Green:
http://cgi.ebay.com/20PCS-10MM-GREE...28452138QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c5075b42a#ht_1029wt_941
Orange:
http://cgi.ebay.com/20-X-10MM-Orang...27054744QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item51911ea198#ht_1197wt_941
and Yellow:
http://cgi.ebay.com/20-X-10MM-YELLO...17861315QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item51909259c3#ht_1288wt_941
Procedure: ( I bought another overhead light unit to make a DIY with, but it was for a sunroof tib, I can't show exactly how to do it, but ill try my best to improvise.)
1.) Take the plat tool and gently pry off the over headlight unit. Once done, unplug it the wires to it.
2.) Next you'll want to remove every screw on there except the screws connected to the silver reflectors. There are 9 of them. One is kinda hidden.

3.) This should pop right out:

If you look at the unit, you'll notice, at least for us non sunroof guys, the two dummy switch spots. For sunroof guys, it sadly comes out since it's actual buttons for the sunroof. Here it is on a sunroof one w/o dummy switches:

4.) This next part, I'm gonna have to just run you through with as much detail as i can. What you want to do next, is drill with the 3/8" some room for the led. When you look down the dummy switch, you'll notice it is a skinny slit that leads to the curve of the dummy switch. You're going to widen that slit to fit the led in. It will act as the led holder. Make sure not to drill to far tho cuz you want the led to fit snug and you dont want to drill through the curve
5.) Drill a 1/4" hole in the curve. This is where the light will come through to sine in your cabin. and since the led will sit above the hole, it will hide the led from sight to give it an OEM feel like how VW and Audi's have. You can drill anywhere on the curve. I did mine straight down but you can have point towards you or the dash instead if you want. It will look like this: ( I have a border around mine that i made. Completely un-needed, just looks clean)

6.) Test the led for snugness and then test the led with 9 volt battery (works best and easiest) so see how it looks
7.) screw this back in place so it looks like:

8.) Next you'll want to connect some extra wire to the posi and neg led wires. You're going to be running these down to your cigarette lighter wires.
9.) Run the wires over the headliner to the pillar where you would mount mutli gauges. You'll have to pry the pillar plastic off. grab the wires and run down under your dash.
10.) Put the pillar plastic back on and run the wire under the footwell area. Use zip ties to make sure the wire doesnt hang down by your feet. Remove the center fascia and pull the wire through. Notice the cigarette lighter wires. You'll want to splice the wires into those wires for power.
11.) put the overhead unit back in place and enjoy how it looks. :3_winkthu
Here is what mine looks like:
Off


On


This is kinda what your cabin will look like at night

Let me know if you have any questions and I'll try my best to help. Sorry this isn't the best DIY but I know you guys can figure it out.
Feel free to give rep too