This is in the original key - being G#/Ab major (same thing). 
If you want it easier transpose it down one step and put it a capo on first fret. 
Being a piano player I tend to put add9s and maj7 everywhere. 
But if you wanted to add them I'd suggest a maj7 on the Fm chords and add9s on the C# and D#.

Hope it's all right! First tab so, here goes.

Nita.



C# Ab Fm Eb  x2

Verse 1:

C# (x43121@1)    Fm (133111@1)    Eb (x43121@3)   Hello, hello, anybody out there?
C# (x43121@1)           Fm (133111@1)              Eb (x43121@3)  'cause I don't hear a sound
C# (x43121@1)    Fm (133111@1)     Eb (x43121@3)   Alone, alone, I don't really know where the 
C# (x43121@1)               Fm (133111@1)         Ebworld (x43121@3)is but I miss it now

Chorus:

C# (x43121@1)                        AbI'm (xx1114@1)out on the edge and I'm screaming my name
      Fm (133111@1)                   Eblike (x43121@3)a fool at the top of my lungs
C# (x43121@1)                       Ab (xx1114@1)                Fm (133111@1)         
sometimes when I close my eyes I pretend I'm alright
                 Ebbut (x43121@3)it's never enough
        C# (x43121@1)    Ab'Cause (xx1114@1)my echo, echo
Fm (133111@1)           Eb (x43121@3)  is the only voice coming back
  C# (x43121@1)    Abmy (xx1114@1)shadow, shadow
Fm (133111@1)         Ebis (x43121@3)the only friend that I have

Play Intro.

Verse 2:
listen, listen
I would take a whisper if
that's all you have to give
but it isn't, isn't
you could come and save me
try to chase it crazy right out of my head

Chorus:
I'm out on the edge and I'm screaming my name
like a fool at the top of my lungs
sometimes when I close my eyes I pretend I'm alright
but it's never enough
cause my echo, echo
oh my shadow, shadow

C#...

Fm (133111@1)    I don't wanna be (an island?)
Cm (x3101x@1)   I just wanna feel alive and
C# (x43121@1)                     Ab (xx1114@1)     (Eb/G)
   get to see your face again
Fm (133111@1)    I don't wanna be an island
Cm (x3101x@1)   I just wanna feel alive and
C# (x43121@1)                     Eb (x43121@3)  get to see your face again
BbBut (x1333x@1)'til then 
       C# (x43121@1)   Ab (xx1114@1) Fm (133111@1)EbJust (x43121@3)my echo,        
  C# (x43121@1)         Fm (133111@1)  EbMy (x43121@3)shadow
You're my only friend and

Chorus:
I'm out on the edge and I'm screaming my name
like a fool at the top of my lungs
sometimes when I close my eyes I pretend I'm alright
but it's never enough
cause my echo, echo
oh my shadow, shadow

C# (x43121@1)        Fm (133111@1)    Eb (x43121@3)                            C# (x43121@1)   Hello, hello, anybody out there?