Most of the plastic loom is sold at parts stores for around $12-15 for a bag'o'loom. They sell two different bags, one has larger loom the other smaller loom. I've seen red, blue, yellow, white.
The interior lighting is a bit tricky to change, I had thought about this myself. The door locks/window buttons are lit up with a tiny bulbs with an Orange silicone boot over them.
I had tried finding some liquid silicone in blue but didnt find any.....
I know LEDs will work... except you'll need to install resistors in the power feed wire close to the button that you want to change.
Then the LED will fit (with a little work) into the factory bulb socket, I had one laying around here I'll see if I can find that. YOu just have to know which side of the LED is positive+ and it has to goto the positive contact in the button switch(s).
Yeah its a lot of work to do in one day, but can be done here and there.
Plus it will lower the battery drain we get a night, like when you brake- lights dimm
In the
Appearance/Non performance sub forum thier are disassembly procedures for the interior, might check that out and see how things go together.
Thier are also pics of the window/lock buttons