Connect through the car CD player directly,Non-destructive installation. Control sthe music play and volume by Car radio panel or the steering wheel. Support 3.5mm AUX audio input. high quality MP3/WMA decoder, let the music more pretty. with no Signal interference,no need to install baterry. NOTICE!!!! Please check with the CAR Model and YEAR and Connectorin the description, If no your car, i'm sorry it may not sure to fit for your car. So please to contact me, i help you confirm the fitment. Thanks! Compatible for: For 2.4 white connector Accord(2003-2011Year) (2006-2011Year) (Not fit for 5D) (2006-2011Year) Element(2003-2011Year) (2005-2010Year) Pilot(2006-2011Year) S2000(2005-2011Year) City(2002-2011Year) -V(2004-2011) FR-V(2004-2009) Fit/Jazz(2006-2011) CSX(2006-2011) (2005-2006) (2007-2011) TSX(2004-2011) (expect type s) Please Note: 1.The Splitter/Y Cable is needed for Navigation headunit to combine Adapter with Navigation system. 2. The AUX Volume be a little bit lower than the original CD. for following head units: for Accord Navi Radio, Accord Premium 6CD Radio, Accord single CD radio, Accord 6 CD Radio, 1, Navi Radio, 1,1sc0,1yc5,2hu2,2j30,2j32,2j34,2jl0,2jb0,2ka0, 2mb0,2p30,2p32,2p34,2pl4,2tw0,3sa0,3ts0,3yc0,3yn0,4mf1,4xb0,4yl3,7bk0, Product Description: voltage Input: 12V DC Signal-to-noise: 90dB Max.current: 35MA Total harmonic distortion: 0.01% Requency response: 20HZ-20KHZ Color: As Shown Material: plastic Package Contents: 1* Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.