name this starter kill keypad

MY fiancee and I just bought a 04 350Z with what I believe to be a aftermarket starter kill. I can not find any info on it nor can I find any relay or main brain to see what type it is. We have the unlock code but I would like to find out what type it is so I can deactivate it, change the code, etc, etc.

I hope you guys have seen this before. The keypad picture is attached.

Thanks for looking into it. I'm been searching for a month now with nothing to show for it....very aggravating.

Agree with just being a aftermarket relay kit for an already exsisiting factory system.

Alright here is the kicker. When we first got this, I did find a sticker under the center console that I thought might be linked to it. It was for a Tadiran Telematics, with some ID#'s and a date chart. After investigation online I found that this Tadiran is a battery manufacturer so I over looked it and thought that it just involves some sort of battery installed on this car.

Well, after you told me to look around the steering column I found something interesting, a module or unit with the same sticker on it. Odd isn't it?

But as far as I can research I do not see where this Tadiran is involved with security systems.

Help!

Found out a little more on the Tadiran:

Seen a FCC ID# and went to the FCC website to log it in to se what I could find. They had downloadable pdf's of the specs of this. Here to find out it is a vehicle location device. Still don't have a owners manual nor I know if the keypad is invovled with this.