Throttle harness has been moved from the right side (2024) to the left side for 2025 RT. It is under the left front speakers on top of the blower motor housing. You will need to remove the left side panels and look up for it from a very low postion (I sat on the floor) with a flashlight to find it. Hope this helps you have less frustration than I did finding it because the 2024+ installation videos show it on the right side.