Normal map partially visible through another sprite,2D Normal map causing partial transparency

I have applied normal maps to two different sprites that function properly independently, but when I move the character sprite in front of the car here, you can make out the details of the car through the character sprite. This goes away when I disable the normal map on the vehicle, so I believe its normal map is effecting the lighting on the forwardmost sprite. Does anyone know how to fix this?

maybe this could help

Okay, so quick update: The artifacting seen through the sprite looks to be the alpha channel of the normal map texture. It looks like the dark portions are alpha and that is why I am seeing the normal map/ texture of the sprite behind. I don’t know what to do about that though.

Edit: Forgot image.