I know a lot of people use the Raddo VR6 cable when using that manifold.
I bought the car with the swap already done, throttle cable is binding and need to replace it. I have no idea where it came from though! Engine is a AEB, has an ABA throttle body on it now. It had the original 1.8t throttle body on it before and the cable worked for both.
It looks like it has the same TB end as a normal mk2 16v cable. I think I have one that I will probably try and toss in and see, but if that doesn't work I have to find what this one is to get it on order.