Using barre chords throughout  play only bottom 2 or 3 strings (muted) when it
sounds right (most of the song). listen to strumming pattern for various parts:

G= 355433
A= 577655
Bb= 688766
C = 8,10,10,9,8,8 (for chorus does not need to be barre)
F= 133211 or 8,8,10,10,10,8


intro: G,G,A

verse 1:
G (320003@1)                    
Back door, exit door
                   ANow (x02220@1)I wanna be your dog
              BbTake (x1333x@1)winding up

verse 2: same

Hot tide, rattling up
Second bottle of French, you roll
You roll with us

pre-chorus:
G (320003@1)    Bb (x1333x@1)G (320003@1)   Bb (x1333x@1)G (320003@1) Bb (x1333x@1) G (320003@1) BbOh (x1333x@1)where I walk now. Where I walk now
   A (x02220@1) C (x32010@1)A (x02220@1)  C (x32010@1)A (x02220@1) C (x32010@1) A (x02220@1) CWhen (x32010@1)I talk now. When I talk now

(back to verse strumming pattern)
G (320003@1)                
Oh where I walk now. Where I walk now
A (x02220@1)           BbWhen (x1333x@1)I talk. When I talk

chorus:
CFlash (x32010@1)lights go out
                      FStars (133211@1)will light the way
CLike (x32010@1)mexican dogs
                   FNobody (133211@1)gave us names

Thats about it really, a few little quicker chord changes later on when there's 
no singing. But same chords.