Volvo Repair: Replacement Bulbs for Volvo SC-813 Radio, v70 glt, replacement bulbs

Question
I have a 1998 V70 GLT.  I need to replace two of the bulbs that illuminate the buttons for the SC-813 Radio.  These bulbs insert in the a rectangular slot with a rounded center and are turned approximately 1/4 turn to seat them in the slot.  The bulbs have a blue colored rubbery covering.  Do you now how I can order at least two of these bulbs?

Answer
I do not believe they are available fom volvo.they are also similar to some other bulbs volvo uses though.I believe you will also find these bulbs in such things as the other dash switches ex. headlight switch, sunroof switch.there is also a similar bulb in the 960 transmission mode selector switch.my s70 radio is also the same way.I just have not looked to see what bulbs I could use.I will try to see what I can find.