Two tips:
If you park outside and are concerned about the immobilizer getting wet, ICU Doctor sells a waterproof box for it, I park in a garage so I slipped my immobilizer into a heavy duty plastic bag just to have some protection. Second, you can buy a set of vents that keeps debris from being able to clog the rear drain holes. Most people don't know about it since it was introduced on the 987, but it fits the 986. I have pictures of it one my website under upgrades > exterior. The part number is: 987 561 487 00, and I recommend everyone buy a pair.
