Spawn NPC with "Arrow" inside blueprint

Hi guys.

I’m making a runner game wich consist of many street pieces. Each street piece is a separate blueprint. On a street there are arrows wich i need to use as a spawn points for NPC (car in my case).
How do i do that? If i connect my car as an actor (add child actor component) it works fine. But if as character (spawn ai from class), nothing happens since this node simply don’t have a relative transform socket.