Determine if you have DC1 or DC2 inlet seat (these have one “window”).

^{1) 2)}

If so you need to open the second window as the DC6,7,10 and 12 have.

^{3) 4)}

If so, then you can cut a second window in the seat.

^{5) 6) 7)}

^{8) 9) 10)}

^{11) 12) 13)}

^{14) 15)}