lights lights lights

[2.5s mila]

so, i installed footwell lights. and i am absolutely hooked.i got a few questions though for my next projects. i have a sedan by the way.1) how can get the wires to the middle rear cupholder? the thing that folds out of the back seat?2) how can i bring the wires from the door to the dash?3) can u connect lights straight to the light in the trunk instead of having to wire all the way to the front of the car?and finally, 4) what underbody kit do you guys recommend?