Some might remember those large speakers replaced the smaller ones that were all around Paradise Pier when the park opened. Those larger ones were installed for Luminaria. Of course the show was meant to last longer than one season. Those small speakers would not have worked very well for a lagoon show. But since the show was cancelled, no real reason to take down all those new speakers. Plus they are already there for whenever they finally do have another lagoon show. But for now, I am sure they help when they have New Year's Eve or other small events in the lagoon. There are still some of the small speakers left. Ones I can think of are around the Catch A Flave ice cream stand as you're walking down towards Screamin'.
Re: V-Day Sights (Now with 50% more Peoplemover and 75% less Canoes)
The sun and the moon are on the wall above the exit of the speed tunnel. It was pointed out to me on my first day of training for the attraction. When you exit the tunnel and are unable to move your star cruiser look up and to your right and it is there.