2004 Toyota Tundra Owners Manual - Page 222

'04 TUNDRA_U (L/O 0309) -Headphone input jacks CAUTION Adjust the volume when you connect the headphones to the jack. Loud sounds may have a significant impact on the human body. You can enjoy the rear seat audio system with commercial headphone. To use the headphones, connect them to the jack. The key must be in the "ACC" or "ON" position. To adjust the volume of the headphones, turn the knob. Turn right to increase the volume. Turn left to decrease the volume. The maximum volume depends on the type of headphones. With some headphone generally available in the market, it may be difficult to catch sound properly. Toyota recommends the use of Toyota genuine headphone. Please contact your Toyota dealer for further details. 222 2004 TUNDRA from Sep. '03 Prod. (OM34426U)