Hi, how to retain back the factory active parking guideline after changing the factory head unit to a aftermarket unit?

I think the aftermarket unit had to have a datalink plug to plug into it. But none of the aftermarket unit have it.

But our local aftermarket radio don't have the idatalink maestro function to plug in. Only the US version got . What the solution for ours?

Thanks for the link. I suppose this unit are us imports?