Never seen it before. A 1991 EB 5 ltr auto with a post factory fitted alarm with FORD branded on the siren and the module.

Does not have any immobiliser function, and bears a number on the module 3A00645
Anyone know anything about these?

I would love to get some info on this unit and see if it can learn a new keypad.

for memory it uses the smartlock key fob.
Inthe cabin there will little ultra-sonic sensors mounted somewhere

Mine has this. Not sure how it works, but i just pulled the control box thing and the siren out cos it was in the way, and everythiong still works.