Need PN for FLR cable harness

[earboled1]

Does anybody knows the part number that connects the Forward-aimed radar (FLR, Component 7/203) to the Engine compartment harness connector 74/321. This is a pigtail that connect the FLR (18-pin connector) to the engine compartment harness in the car (74/321 8-pin) and should be between 12 to 18 inches long. Also where can I get this cable. I have been to several Volvo dealers and they don't know the part number, the answer is that they need to call Volvo and inquire about it, apparently Volvo don't publish the part number for pigtail harness cables.