It's only slightly more difficult, but the process is the same. Just take off the trunk lid liner and turn the reverse light key socket as you would the turn signals.
The only thing is that since it is small and tend to be very tight in there, it may be very hard to turn so I do recommend getting something like a needle nose pliers to get a good grip on it to turn it. It's also a good idea to get a towel to wrap around the light socket to prevent damage from the pliers.
Here's a vid on how to get access to it:
You don't have to take off the rubber trunk bumpers. I suggest just leaving them on so you can use them as guides when you go to put the liner back on.
I went with Auxito LEDs as well, but the ones I went with are a bit more expensive. The aluminum housing makes it less noticeable in the lens than the ones with the black circuit board exposed. It might also be brighter due to the different design to them.
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