Ty Mike!
1.When after starting navigon app, the screen turns black, the iphone stil shows navigon http://imgur.com/a/stJpO
2. When i enter the route the screen turns with green code for a part of a second and switches to navigon like it should . http://imgur.com/6CUH7K7
3. after loading 20 sec the screen is sharp but a littlebit laggy and it losing GPS a lot. but i dont know if its because my iphone was on the seat. http://imgur.com/J6oCNuB
As you can see, the screen dont fits in corectly, but the important part is visible!
thank, i´m very happy the way it is. i can use it now