Don’t make something an objection unless it needs to be.
If a customer knows how your trade process works be up front with them.
Be as transparent as possible with your customer to get the sale. If you pause when presenting numbers it will give them reason to question you. Don’t give them any reason to do so.
If you stand your ground and don’t hesitate when giving trade-in number, MSRP, taxes, discounts, fees, or any number then you will show conviction and nix the bargaining before it happens.
Own the numbers and say it with enough confidence so that the buyers believe you