3 in 1 Bluetooth car kit, there are AUX, USB and built-in bluetooth 5.0 upgrade the car playback system instantly, the built-in Bluetooth function not only plays music, but also supports hands-free calls. | Bluetooth and USB are support Steering Wheel Control and Radio Panel Control, for your cosy driving.Grounding noise is caused by ground loops which happens when the audio source and the speaker use the same power source | Compatible with: Accord 2003-2011, Civic 2006-2010(Not fit for 5D), City 2002-2011,CR-V 2004-2011,FR-V 2004-2009, Element 2003-2011,Odyssey 2005-2010, Pilot 2005-2011,Fit/Jazz 2006-2011, S2000 2005-2010,Legend 2006-2011,Ridgeline 2006-2011; ACURA CSX 2006-2011 MDX 2005-2006, RDX 2007-2011,TSX (except type S)2004-2011, If possible please check the CD changer port is the same as the picture show. | Only fit for honda factory radio, but the adapter is not compatible with Integrated satellite(AT/PTY/XM/Sirius). Please do not place the adapter under the windshield exposure to the sun, to avoid high temperature deformation of the product | AUX is not support steering wheel control and radio panel control, just able to adjust the volume by the radio panel. | Please Note: USB, AUX and Bluetooth can not be used at the same time,when you need to use the bluetooth for calls, it must disconnect the others.