Whether your an expert Honda electronics installer or a novice Honda enthusiast with a 2003 Honda Civic, a car stereo wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car stereo, car radio, car speakers, car amplifier, car navigation or any car electronics is identifying the correct color wires for a 2003 Honda Civic.

The Modified Life staff has taken all its Honda car radio wiring diagrams, Honda car stereo wiring diagrams, Honda car radio wiring schematics, Honda car wiring diagrams and cataloged them online. Feel free to use any Honda car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2003 Honda Civic.

If you can’t find your car stereo wiring diagram or car radio wiring diagram on Modified Life, please feel free to post a car wiring diagram request (Car Stereo Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.

If you would like to help the Modified Life community by adding a car stereo wiring diagram or car radio wiring diagram to our resource, please feel free to post any additional information about the 2003 Honda Civic on this page.

2003 Honda Civic Car Stereo Radio Wiring Diagram

Car Radio Constant 12v+ Wire: Blue/White
Car Radio Switched 12v+ Wire: Yellow/Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Blue/Green
Left Front Speaker Negative Wire (-): Gray/Black
Right Front Speaker Positive Wire (+): Red/Green
Right Front Speaker Negative Wire (-): Brown/Black
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Blue/Yellow
Left Rear Speaker Negative Wire (-): Gray/White
Right Rear Speaker Positive Wire (+): Red/Yellow
Right Rear Speaker Negative Wire (-): Brown/White

Make Your Honda Civic Car Stereo Installation Easy with these Products
Car Stereo Wire Harness   2005 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   2004 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   2003 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   2002 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   2001 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   2000 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1999 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1998 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1997 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1996 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1995 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1994 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1993 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1992 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1991 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1990 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1989 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1988 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1987 Honda Civic Car Stereo Wiring Harness
Car Stereo Wire Harness   1986 Honda Civic Car Stereo Wiring Harness
     
Car Stereo Dash Kit   1990-2011 Honda Civic Apple iPod Adapter Kit
 
Car Stereo Dash Kit   2010 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2009 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2008 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2007 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2006 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2005 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2004 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2003 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2002 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2001 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   2000 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   1999 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   1998 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   1997 Honda Civic Car Stereo Dash Kit
Car Stereo Dash Kit   1996 Honda Civic Car Stereo Dash Kit
     
Auxiliary Car Audio Input Adapter Kit   1990-2012 Honda Civic Auxiliary Car Audio Input Adapter Kit
Make Your Car Audio Installation Easy with these Tools and Accessories