(My first addition to Ultimate-Guitar Tab)
Chords in brief:
Intro: E  F    G   F    E x4
Verse: A  F#m  E   x6
       D  Bm   D   Bm   D   E   
       A   F#m   E

Song in more detail:
Firstly, this is just an acoustic approximation of the song. Just the best way that I 
have found to play it on a solo acoustic guitar. There are some 2nd guitar bits
in the second verse that are lovely and if you have a loop recorder you might fancy 
going off on them whilst the melody continues, but I don't have a loop recorder so
I didn't bother working them out. The end bit, where they go off on one about 
enchiladas, is a bit weird and ends with a fadeout which doesn't really work on a solo
acoustic. I made up my own way of playing it. Totally different, but it works much 
better in the absence of production.
Please remember: this is never going to sound exactly like the recording but it's the 
best way I've found to play it on a solo acoustic.
Play around with it, make it your own interpretation.

Standard tuning.

INTRO: Use your thumb to strum rapidly, but softly, up and down to create a tremulo 
effect. Slide your left hand between the chords for the intro. Sounds crazy, but I
prefer it without barring the chords.
    E   F   G   F   E        (repeat x4)
e---0---0---0---0---0----------|
B---0---0---0---0---0----------|
G---1---2---4---2---1----------|
D---2---3---5---3---2----------|
A---2---3---5---3---2----------|
E---0---0---0---0---0-0--0-0-0-|

Whilst strumming the E you might like to use your left hand thumb to play the low 
e-string (it kinda subsititutes for that bass/thump noise you can hear in the original recording).

VERSE: Play the "A" as the higher bar chord and, just before you transfer to the F#m, 
use your little finger to fret on and off the high e-string 7th fret (you'll work it out).
    A          F#m   E
e---5---7-7--5--2----0-------|
B---5-----------2----0-------|
G---6-----------2----1-------|
D---7-----------4----2-------|
A---7-----------4----2-------|
E---5-----------2----0-------|

A       F#m  E   A              F#m  E
Take me down  to where you hide,
A      F#m   E       A           F#m  E
Lay me down,  lay me down inside,
A        F#m  E      A                     F#m  E
What use now?  Roll back this Pacific tide.
D                         Bm
Tijuana Lady where did you go?  Yeah,
       D                          Bm
I been chasing you around ol' Mejico, yeah,
     D         E                A
Gonna find my way back to San Diego.
                 F#m   E      A       F#m      E
Baby where'd you hide?

A       F#m  E   A              F#m  E
Take me down  to where you hide,
A        F#m    E       A          F#m  E
Play me around,  lay me up inside,
      A       F#m   E     A            F#m E
Don't make no sound coz I know you lie,
D                           Bm   E
Tijuana Lady let's take it slow, yeah well I..
D                          Bm   E
  Know that I'm no head honcho, but I...
D               E                 A    F#m   E
  A  F#m   E
  I'll keep you warm in my silky poncho

INSTRUMENTAL BIT (I play it like as follows but you can just leave it
out for simplicity)

A     C#/C#m Bm     E
A     F#/F#m (on 9th fret)  E

D                          Bm   E
 Tijuana Lady where did you go?  yeah well I...
D                             Bm
 I heard you lost your last sombrero,
D                             Bm   E
 Tijuana Lady which way'd'you flow? I'm a..
D       E          A
 El Mariachi Desperado,
                    F#m   E
Tell me where'd you hide,
A                     F#m   E
   Tell me where'd you hide.

[Now, either finish with another lovely D Bm chorusy type bit eg:
D                         Bm
Tijuana Lady where did you go?  Yeah,
       D                          Bm
I been chasing you around ol' Mejico, yeah,
D                           Bm   E
Tijuana Lady let's take it slow, yeah well I..
D               E                 A
  I'll keep you warm in my silky poncho.


OR....
try out my interpretation of the weird enchilda bit:]

   A                    F#m  E  Em
...  Tell me where'd you hide?
Em                      B
     Enchilda Desperado day,
Em                              B
Senorita come back and meet me again,
Em                    B
Buena vista senorita hey,
  Am          F                  D                 A
I love you so come back, be with meeeeeeee        again.

[tabbed by Tim Harcourt]