Just finished this mod definitely a required mod for anyone who is frustrated at having to stand next to the door to lock or unlock!!
The only problems I had was that I couldn't get around/under the foam block, so I had to remove some to get to the wires (which, of course, offset the increased weight of the added wire and quick splicer.) Once I got to the wire bundle, there was no less than 5 black wires, none apart from the bundle and I could not get to the connector to see what pin each was connected to. One was definitely thinner than the others and so I gave that one a gentle tug (crossing my fingers) which dislodged it from the rest. From there, just spliced in a few feet of wire from an old phone line and it works great! Haven't tested the max range, but it works from indoors to outside at least 30 feet, so I'm happy.
Thanks to everyone contributing to this.
----------------
2007 Exige S