The song is actually in C#m, not Am.
The chords you have found are for guitar with a capo at the 4th fret. Looking at old clips, it looks like this was the way they originally played it - with capos on the guitars. This means that an Am chord played with the capo at 4th fret is actually C#m, and Esus4 with a capo at 4th fret is actually G#sus4.
The bass part you have got is written at correct pitch - this is also the way they typically did it, cos bass players can transpose better than guitards
So the first chord is a C#m and the first bass note is C# (the root), the other chord you mention is the G#sus4 and you said you are playing an F#, which is a little surprising as I would have expected the root as well, but it's the dominant 7th - making the whole chord and inversion of G#7sus4, the way its written.
You sure that last note isn't G#?