3.3 ohm resistor for each squib that you need to isolate. I had a Two stage airbag so needed to go across the two circuits, two resistors. Check your wires coming out and trace to work out horn and airbag/s as appropriate.
Hope this helps. Cheers.
Oh and remember that faults in the SRS system will hard fault until reset by a scan tool. (Light will stay on even if picking up resistor until cleared)