Using the ultra thin, flex LED I got here:
I made the light in the trunk a least doubled or tripled over than dingy 914 factory bulb with about a 5 minute mod. The trunk light assembly was so easy to remove. Just pull down on the drivers side of the assembly and it pops right out. You can unplug the light assy. if you want, but the upgrade was so easy I just let it hang and did it there. The new "bulb" just fits right in, but you might have to shave a 1/16" from the LED if yours doesn't. Just use caution.
The first pic shows the "bulb", the different hookups included to fit all different types of cars and the factory trunk light assembly. The hard part was stuffing all the excess wires back in. The second pic show the result which is kinda hard to see, but it is real noticeable.