Hey Scribby,
You have roll up windows so
The actuaor will move up and down by itself but
WILL NOT BE STRONG ENOUGH to move the lock once hooked up
UNLESS you get a relay for it.

Yes I know they don't tell you this at the purchase but it is true.
I did the same thing for my base models and once I put in the relay it was great.
This was after I fried the control hot hot box trying it too many times without the relay.
I have the connection pics you need to make for the fuse panel & light circuit if needed.
Hey Jimnist, Pluging things into 12 volt without knowng what goes where is a good way to fry those little boards. but your stuck without the instructions.
sounds like when you first gave it power you connected the command to unlock (+) ??? good luck.