Mk3 mystery connectors and black box. AM immob delete

[SCHNICK18]

So my car appears to have some sort of afterm[/img]arket immobiliser system fitted which has a keypad but the car works fine without using it.
 
I don't like it so I'm trying to remove it.

But there are multiple mystery connectors and boxes and I do not know what's been done.

Can anyone tell me if the black box on the red box is original? The main keypad seems to go into there.

What are some of the connectors pictured? There is a white one and black one by the left side of steering wheel.

Any advice i would appreciate! I do not want to demobilise the car.

Will have to add photos from computer as from phone isn't working!

Thanks

[paulj]

My 2000 model was fitted with a Toyota TVSS IV D security system.  You should be able to find the installation instructions on the internet if you search with the model details. The Toyota reference for the instructions is T4RW3-0-400.  Might help you work out what to keep!

[SCHNICK18]

Thank you for the feedback. I never figured out how to get photos from my phone into thread!

I'll take a look at that

It would be good to have a picture of under someone's steering wheel to see what everything should be!