Only had two blanks on the car, and they were the TC and Sport button missing.
So I bought the twoo switches from vauxhall for about £15 each.
I already had the connector for the traction control, but sadly it didnt do anything, it just provided a power source for the LED.
First take the traction conrol light out of the console and take it apart so you can see the circuit tracks. Comes apart very easy, just unlcip the back face, and the whole thing pops out.
Then solder 2 wires from the LED legs and drill a hole at the back of the swich so the wires poke out. Then put it back together.
When you have done this, feed the wires into the bay below, which houses the sport button. and push the TC button back.
So now you have the traction control light working providing the conector is already there, and a feed from it going to the bay below for the sport button.
Take the sport button apart and solder 2 wires to the legs of the MIDDLE LED and drill hole in the back of the switch for the wires to pass out of.
Now you will have the two wires with the feed from the Traction control button pocking through the sport button bay.
Solder these wires to the wires you have just connected to the sport button, so that now it is connected.
now simply guide the wires into the gap behind the button and slowly push it back into place.
All of the lights will now work !
If enough people are interested in doing this, i will consider doing a proper how to.
Just thought u might like this, as it looks crap in the night when the switches dont light up !