Hi Paddy,
Welcome to the board!
If you really like straplocks (I presume either the Dunlop or Schaller styles), you can put it on the front strap button as it simply screws into the neck with a conventional wood screw. But you cannot replace the rear strap-pin because it is integral to the output jack.
Personally, I doubt you'll ever "need" a locking mechanism for an acoustic, especially where the Taylor strap pins are located where the weight of the guitar helps keep the strap on the pin (which should already be snug to begin with). Unless you're doing lots of stage antics, your acoustic should be perfectly secure with a well-fitting strap onto the stock pins.
Edward
