Hello and thank you for using just answer!
Do you mean that this is a RS3000 system?
What are you trying to do, remove the system or add a new remote?
Not a problem, YES this is under the driver side dash. It looks like this:
And is located here:
The box should be black plastic or grey metal dependin on which one it has....are you sure that this system is still in place on the car? The diagrams I gave you above show the exact location.