How Easy is it to Run Wires in the Ceiling Liner?

I want to improve the sad, sad, lighting in the hatch area. I'd like to tap into the existing light that is on the left rear of the hatch area for power, run wires from there around the ceiling and into the hatch. Anyone know how hard it is to get up in the liner without destroying it? How about the side panels? How does one get a new wire into the rubber tunnels that carry existing wires into the hatch door? How hard is it to strip trim off the inside of the hatch?

 

Jelloslug, Thanks for the advice! if I ask for it by that name, will a car parts store know what I mean by a "Panel Removing Tool"? Any advice for how to operate it? I don't have anything but my car to practice on and I don't want to fnord it up.

USBWolf, even if I were to put, say a 50 watt incan, in that spot, it would still be poorly located. Anything tall on the left will hide it, anything to the right of something tall will be hidden in shadow, and it is nicely positioned to shine in my eyes while I'm in there.

I'm usually OK with putting in some work up front to get a solid high quality result. In my last Pri when you opened the trunk it looked like I had a fluoresent light hidden in there somewhere. In a pinch you could kneel down and use the trunk as a flat well-lit work space. The entire trunk was clearly lit and no emmiters were visible to the naked eye.

I am thinking of going with a single brighter LED bulb in the ceiling lights. I've found one that looks good and need to go out and measure the space available in the center opening.