Texas Special neck pup double ground

Why the neck pup of a Texas Special set have a separate ground (three wires). How should I solder the black and yellow wires (I have a CRL three position switch)

Thanks anyone replies

Cheers

Fabio

Here is how the pickup is wired with a 4-way switch.http://members.aol.com/lazy3321/4switch.jpg
For a 3 way switch just tape up the yellow wire, it is a separate ground wire for the neck cover to be used with the 4-way. The 4-way gives you the bridge and neck in series(noise cancelling as well) as opposed to the parallel configuration with a 3-way.

For a three-way, you should run the extra (yellow) wire to ground -- not tape it up -- so that you get the shielding function of the cover. On regular pups, the cover tab is connected to the black ground wire eyelet; for the TS pups, they just run a separate wire.

For a three-way, you should run the extra (yellow) wire to ground -- not tape it up -- so that you get the shielding function of the cover. On regular pups, the cover tab is connected to the black ground wire eyelet; for the TS pups, they just run a separate wire.

Thank you both! I'm getting confused by the instruction sheet found inside the pup case, showing (thanks Caper) the four way switch.

So I 've just to solder the yellow to the volume pot...

Kevin, thanks for clearing that up, it does make sense.

I just got a four way switch, can't wait to hear the new option!!!!!