The Mustang shenanigans of a Bavarian

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
This is gonna be a general thread to document everything thats happened or being done to my '07 GT/CS (or maybe more in the future, who knows) inculding the process of making it streetlegal and registering it in Germany.

OG Post: Greetings from Bavaria, Germany!

If you want to, feel free to join in on everything!
 
Last edited:

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
Alright so I sent out my Tail lights to get modified since in Germany indicators need to blink in amber and a additional rear facing high brightness fog light is required by law.

Since I don't want to ruin the appearance of my car with anything added seperatly I looked around and found a company in Poland that modify the tails for german regulations while keeping the stock apperance.


Reached out to them and they said they'll only modify the harness part. So I got a extra set of harnesses while in the US to buy my car, put them in the tails once I had the car here and sent them out.

Now got the tail lights back..... I expected differently.... On the outside it looks fine apart from some loose wire sticking out but underneath the tape the quality really isn't good. And wiring it up is a mess..... I couldn't understand the diagrams and had to test through it all to understand. And a bunch of just cut wires hiding.... I'm gonna be redoing all of the wiring because I can't leave it like this.
One of the sockets was swapped out and siliconed in.... so if anyone has a spare tail light harness (just one side) they can sacrifice and send me I'd really appreciate it. Gonna use the bulb sockets and wire it all up so it looks factory and is fully removeable if it ever needed to be. Luckily this is the extra pair I bought so they don't mess up the original.

If anybody knows where to get connector terminals/pins to crimp please let me know.

I'll try to get a video uploaded.

With the tape still on:
IMG_20250618_122231175.jpg
IMG_20250618_122219689_HDR.jpgIMG_20250618_122235613.jpgIMG_20250618_122247136.jpgIMG_20250618_122306610.jpg







Without the tape:
IMG_20250618_122344696.jpgIMG_20250618_122415411.jpgIMG_20250618_122358428.jpgIMG_20250618_122421585.jpgIMG_20250618_122429147.jpg
 
Last edited:

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
The Resistors and Module were siliconed in to waterproof them.
I'll test the lights how they are on the car, write my own diagram for it and redo it all. Already figured out how to depin the connector.

For the resistors and module and other sensitive connections I'll make a box that will be mounted behind the carpet so that behind the grommet/chassis seal on the outside will only be wires.

Just need another single tail light harness so that I have two sockets for the inner most light and I need a place were I can buy terminals for the connector to crimp myself. Any help is appreciated!
 
Last edited:

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
Thought the first, apparently the latter....
1750773576984.png

Same Reason I didn't buy a already imported Mustang..... because of stuff like this.....

Anyways I found out which terminals I need and found them in a set to crimp myself. Just need a harness for the extra sockets....... and the people here either don't have the harness, just the housing or don't wanna sell the harness alone..... not gonna pay 150€ for a single tail light tho.....


*Sigh* as always this is gonna take longer than I expected......
 

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
Okay so I tested out the Tail Lights today. Complete mess.... brake lights and turn signals seemed to be problematic which we later figured out is because they feed from the same pin and just the SJB gives out the intervall for it.
After going through the diagram they sent me I realised they wanted me to basically just wire from the front turns to the rear, from the brake light switch to the rear stops, cut a bunch of original connections and just in general do exactly the opposite of what I wanted to do. Never was it mentioned that anything else other than the rear harness needed to be modified..... like why the hell should I sent them in to modify them if I still have to hack up the rest of the car......

Like look at this mess:
Unbenannt.jpg

Great.... what a waste of a harness....
I'll have to see how I can resolve all of this with the people that did..... that..... to the harness and see about just building my own.....
 

GriffX

Senior Member
Joined
Sep 28, 2017
Posts
1,057
Reaction score
629
Location
Rural Germany
I don't get it. Should it work like in the video? Where is the running light module? Switch back LED lamps? Otherwise how to get amber through the red glass? Where ist the fog lamp, what bulb?
I have only one additional reversing light and it is very dark, enough for regulations but not good.
 

DE_Marcus

Junior Member
Joined
Mar 25, 2025
Posts
46
Reaction score
18
Location
Hohenthann-Tuntenhausen, Germany
Yes it should work like the video. Switchback LEDs are in the Stock sockets and the sequential module is in the tail light harness. One of the reverse lights is replaced with a red LED to get the rear fog.
The Problem is there is no module to split the brake and turn signal which comes from the same wire and because of that they want me to get all of that from somewhere else in the car WHICH WAS NEVER MENTONED and I would have never sent anything to them if I knew that.

After asking if only the tail light harness or the housing aswell is modified they said quote: "In general, you need to send the whole lamps so that we make you everything ready, but the change itself is made only on the wiring. So if you want a spare original, then just buy the wiring." No mention of the SJB or brake switch or front turn signals and nothing on the website......

As always a to good to be true situation.....
 

Support us!

Support Us - Become A Supporting Member Today!

Click Here For Details

Back
Top