[CQ-Contest] DX Doubler and cabling with FT5000/3000?

[Jeff Kinzli N6GQ]

Does anyone have any first hand knowledge on interfacing a DX Doubler
with FT5000/3000? Would DX Doubler cabling built for FT1000 work with
the 5000/3000 radios?

Thanks much,
Jeff N6GQ