Vehicle possesion in game

I have a vehicle that I made that I would like to use in the game. I have a player character and I want to be able to possess the car. If I place an instance of the vehicle in the level and use a trigger box I can posses the car and such; What I want to do is attach the trigger box to the car so that if I place a vehicle spawner in the map I can use all of the vehicles instead of just the one I reference in the level blueprint.

I tried placing a collision box in the vehicle blueprint and then tried calling it in the level blueprint but I don’t quite understand casting and I don’t know what to link to the ‘object’ part of the vehicle blueprint.