Un-doing Speedo help

Where can I get hold of the *special* star screw driver bit that un-does the speedo unit?

I have loads, but not one small enough, I've been to a few D.I.Y stores and they cannot help!

I'm just changing the colour of the illumination behind the LCD's.

 

Got a screwdriver set from Halfords which had those torx bits in it.

 

I've got 3! None of which are small enough.. I went there on the off chance, and they said thats too smalll for anything we have.

 

The one I have has some small ones in it.About 2-3 mm dia.

 

Mmmm..I thought the same thing but on closer examination the smallest one in my halfords socket set is about 5mm from tip to tip - it's marked T10.

If that's any good to you, you're welcome to borrow it.

 

This is from set from halfords.....