Break On Through Bass Tab

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This is probably as close as it's going to get, I tried the other tabs but they couldn't 
the mustard.

You can use either one of these riffs, either way it still sounds the same

This one is the easiest because you hardly have to move your hand
G|--------4----------2----------4---4---------2------|
D|---2---------0----------2--------------0-----------|
A|---------------------------------------------------|
E|---------------------------------------------------|

This is harder but if you do it this way then you can get to the pre-chorus and chorus
back and forth faster
G|---------------------------------------------------|
D|--------9----------7----------9---9---------7------|
A|---7---------5----------7--------------5-----------|
E|---------------------------------------------------|

Pre-chorus:
G|---------------------------------------------------|
D|---------------------------------------------------|
A|----5--0--5----5--0--5-----------------------------|
E|---------------------------------------------------|

Chorus:
G|-------------7---9---------------------------------|
D|--------9------------------------------------------|
A|---7-----------------------------------------------|
E|---------------------------------------------------|