1. Disconnect battery cable;
2. Take off airbag and original paddle shifters;
3. Replace original paddle shifters with TDD magnetic Paddle Shifters,please use the screws 4x18MM or 4x14MM (depends on different car models) to mount the paddle shifters onto steering wheel;Screw driver is M2.5;
4. Install airbag and reconnect the battery cable;
5. For some car models,it may need to use diagnostic tool to delete the error light on instrument panel,since the error light will be shown after airbag is removed.