How do I defuse the bomb?

Hint 1 of 7:

You found the hint a long time ago.

Hint 2 of 7:

How many wires are there?

Hint 3 of 7:

4 x 3 x 2 x 1 = 24 you could try all the combinations.

Hint 4 of 7:

There is an easier way.  Like I said you found the hint long ago.

Hint 5 of 7:

What else has four colors?

Hint 6 of 7:

The scarf.

Hint 7 of 7:

The only difference is the scarf has grey while the bomb has black.