Depends on the location. Gauge cluster cannot. Screens for shifter position, mileage, ATC, EVIC will be difficult and require colored gels to get purple. Difficult because the light you're starting with is greenish.
Other locations are easier. Any location that achieves the green color with a blue bulb sheath should be replaceable with a purple LED. Any location that uses a blue gel will be very hard. I believe ATC and EVIC use gels, while the headlight switch, clock, 1st gen keyring use sheaths. Radio probably uses gels. I haven't taken apart the door switches yet as I haven't gone very far in my own conversion to ice blue. Blue is much easier to switch to. Other colors require more work.
Carlisle 2018 - An epic weekend, gone too fast
Carlisle 300M Special class - 1st Place
Carlisle 300M Club awards - Best of Show
Humbled. Floored. Ecstatic. Grateful to all who voted for Luna against such stiff competition!