This is how I play Silver Sun. Really nice song from Crystal Stilts.  



Intro: D, alternating with Dsus2 and Dsus4. Listen to the song for timing.

Verse: Same as intro.

Chorus:

Em A D G
Em A D, Dsus2, Dsus4



Bridge: Bm

G D Em G A

Vocals come in with the G " swept into the cast of a past december"

I recommend heavy reverb!