Mouse point to position using Motor6D

There are rotating turrets that the player can rotate. The turret rotation uses Motor6Ds, and changing the Y rotation on C1 will make it rotate around a base.

The player is supposed to be able to click to a point and the turret should then face towards where the player clicked. This could hypothetically be done using CFrame.lookAt(), but this is not possible with a Motor6D.

I need to be able to find the rotation needed to apply to the Motor6D’s C1 for the turret to face towards where the player clicked.

Client script:

Mouse.Button1Down:Connect(function()
	Event:FireServer("Aim",Mouse.Hit.Position)
end)

Server script:

game.ReplicatedStorage.Event.OnServerEvent:Connect(function(player,control,Position)
	if control == "Aim" then
		for _, Turret in Main:GetChildren() do
			if Turret.Name == "Turret" then
				Turret.Rotate.Motor6D.C1 = CFrame.lookAt(Turret.Rotate.Position,Vector3.new(Position.X,Turret.Rotate.Position.Y,Position.Z))
			end
		end
	end
end)

I knew when writing this that the Server script wouldn’t work, but I wanted to see if I could understand a little more before trying to do this; the script does absolutely nothing in helping me find out what else to do.