Non genuine part. 30752175
They don't come with the blue cap, but you just swap them over from the old bulbs.
Use screwdriver full width to fit in gap on rear of bulb to fit.
I swapped all 10 on my 2005 XC90 radio as a few had failed.
Product spec -
CNW1-23
Fitting guide -
Here
£15 for 10 posted.