correct
the Bvision now connects to the LED pins which is routed to a 15pin VGA port via relays which also controls the Indivision ( default ). now that everything is on the motherboard it may be possible for auto switching.
the old LED wires will be replaced by 16 pin socket for internal floppy LED track counter,floppy read/write access,HD access,pcmcia & tri-colour power LED.
But the original poster wanted an indivision cable, I dont think he wants to go modding his A1200 Mobo.
Out of curiosity, are there any pictures of this mod???