BEAR IN MIND:
Read the TSB very carefully. It doesn't describe the whole process, but refers to it and then goes into the changes required for the TSB....
"The whole process" involves essentially REMOVING YOUR ENTIRE INTERIOR. They've got to take your headliner out to get to the moonroof mechanicals, and they've got to take off all the pillar covers and other pieces to get to the headliner, and they might take out the seats and other trim pieces to get to the pillar covers.
I'll bet you cash money right now: THEY WILL NOT PUT ALL OF THAT BACK TOGETHER AS CAREFULLY AS IT WAS ASSEMBLED IN THE FACTORY.
In fact, you absolutely should consider any "moonroof service work" to quiet any noise up there as "replacing that noise with ten times as many interior noises, which you may never ever manage to quiet, so long as you own the car."
In other words, "DANGER, DANGER, WILL ROBINSON!!"
So, ask yourself the following questions:
How often do you hear it rattle? If it's not that often, can you live with it?
What position does the roof have to be in before you'll notice the rattle? One you would use virtually every time you open the roof, or perhaps one you probably wouldn't use that often at all? If it's not a position you'd normally use, can you live with it?
And so on.
BEWARE.
This sure happened to me with a 2003 Corolla, and the damn rattle only happened when I opened the roof "all the way," which I very rarely ever do. Absolute stupidest thing I ever did in my whole life. I traded that "once in a blue moon" rattle for a headliner that made noise 100% of the time, wherever I went. Absolute stupidest thing I ever did in my whole life.
BEWARE.
