This is only the basic lines for the song, I haven't included improvs and fills, if you want to improvise your own the song's in D minor. I think it's his Bassballs pedal that Flea uses, I have one myself, but if you don't, either use any kind of wah filter you have or just go for a bright sound with your setup.

Intro:
G|----------------|----------------|----------------|-----------------|x2
D|----------------|----------------|----------------|-----------------|
A|5-5-5-5-5-5-875-|------------875-|------------875-|--888-7-3-781087-|
E|----------------|6-6-6-6-6-6-----|5-5-5-5-5-5-----|3----------------|

Verse:
G|----------------|----------------|----------------|-----------------|x4
D|----------------|----------------|----------------|-----------------|
A|5-5-5-5-5-5-875-|------------875-|------------875-|--888-7-3-781087-|
E|----------------|6-6-6-6-6-6-----|5-5-5-5-5-5-----|3----------------|

Chorus:
G|----------------|----------------|x3
D|------88888888--|------5577777755|
A|55555-----------|88888-----------|
E|----------------|----------------|

G|----------------|----------------|----------------|x1
D|------88888888--|----------------|----------------|
A|55555-----------|33333-33333-3333|33333-33333-1111|
E|----------------|----------------|----------------|

Due to the poor quality of the bootleg, it's nearly impossible to determine if there even IS bass in the bridge, so I've left it out, but it you want to add something, it follows the basic progression of the verse, just improvise a little melody.