Atm, gun pods seem to only use the player inventory to reload. This makes them partially unusable when used with remote driving.
Also, not very convenient to manage the ammo, as you don't need it for anything except to reload the pods, unless the ammo happens to be compatible with your personal guns.

I would also like to request auto reloading when ammo is low for vehicles, even when not player driven. Vehicles can be usable as static turrets when not in direct use, since it can be more convenient to have multiple vehicles parked ready to launch an assault than it is to have a single vehicle that goes all over the map.