First, remove not only the instrument panel, but also the entire instrument panel of the vehicle. After removing the instrument panel, it is necessary to continue to remove the blower box in the instrument panel. Small warm air box and air conditioning evaporation box are installed inside the fan box, which requires a large amount of work and requires certain professional technical knowledge and relevant operating experience. Therefore, if you don't have the above conditions and don't know much about the structural design of the vehicle, it is not recommended that you do the above operations yourself. It's best to go to specialty store or.