I wanted to recode a MK4 from Radio Navigation ( Monochrome ) to Monitor( RGB) Navigation.

First connect the GT-1

1. Code ZCS/FA
2. select after sales replacement(retrofit)( i know it isn't, but other wise you can't code the MK4
3. select IKE
4. select language
5. then you have to selet the 3 languages
6. Then on the nav screen you wil see load software. But you can’t see because your Nav still isn’t code for the Monitor. Butt you musst put the V26 in the MK4.
7. after you putt the V26 you have to wait in about 2 minutes the screen wil come, last time it took about 4 minutes.
8. After the succesfull software load , you have to select recode the Navigation computer, an you can code the MK4 to your car.

greets Appy.