Slightly off topic but just found this video on removing stalk light switch on a LR Discovery, as later Mogs use the same Lucas STC4017 (SQB160) switch and I've just bought a spare. Note steering wheel does not need to be removed and imagine there is better access to the two screws that need removing once cowls are off.
https://www.youtube.com/watch?v=VmmpfvFfy20Useful part starts 2:20 in. Note the two screws mentioned are supplied fully tightened on replacement switch and after removal and clicking into place need to be fitted through tabs on central plastic moulding before tightening back into new switch body to fully secure.