No. In the two diagrams, your accessory wire shows only relay wires. In the 9960, it has two relay wires plus two wires for the camera controller. I'm "guessing" that you might be able to use the same wire as the 9960. I'm just guessing though.
edit: Here's the Kenwood 9140 sub forum. I look through a few pages and couldn't find much on relating to your question, so you might just post a new question. I've had all of my questions answered pretty quickly.
http://kenwoodforums.com/viewforum.php?f=2