so LED's on my clock's :
by day :

by night :

*what you need :
4 of these (maplin,halfords,motor-factors) + soldering iron

*how to :
easy - take out the dash console - remove the light bulbs and sold the LED's insted of them.You might need to adjust a bit the LED beam .
The AIR Cond unit is next .then i'll try something at the DIALS