Install an Aux in a 2003‐2007 Honda Accord

Prior to the year 2003, the option of having an aux system installed in your Honda Accord was not available, unless it was professionally done because there is no Aux button on the stereo system of those model years. Between the years of 2003 and 2007, the cars were made with the exact same compartments and interiors. For the most part, car companies change their interior designs of a car model about every 4 years. So, prior to 2003 and after 2007, you are dealing with different interiors and compartments; therefore, the instructions to installing an auxiliary will be different to these instructions. This is an instruction set for installing an auxiliary system in a 2003-2007 Honda Accord. After gathering the required tools and items, you will remove the compartments under the stereo. Once all compartments are removed, the internal wiring will be revealed so you can attach the auxiliary underneath the stereo.


  1. Get everything ready.
    • Make sure the vehicle is off and parked with the emergency brake up and in use.[1]
    • Gather all the items and tools you will need. Refer to the Things You'll Need section at the end of article.
  2. Move the shift knob back all the way.
    • Use the flat-blade screwdriver to remove the small plastic cap piece next to the shift knob.
    • Then, use the flat-blade screwdriver to press down and hold the inside of the uncapped piece and pull the shift knob back all the way.
  3. Remove the plastic cover surrounding the shift knob.
    • The cover is attached tightly in 6 locations. There are 2 in the back corners, 2 on the sides, and 2 in the front corners by the park "P" symbol.
    • Remove it by lodging the flat-blade screwdriver between the plastic cover and rectangular area and pulling up to pop the cover out of place. The cover is easiest to remove by popping out the front corners located by the park "P" symbol and one of the sides. Once at least 3 locations are out of place, the cover can be removed by just pulling it with some force.
  4. Remove the 2 corner screws located near the rectangular area of the shift knob.[2]
    • Unscrew the 2 screws by the front corners using the phillips screwdriver and use the long-nose pliers to remove the screws without them falling into the wiring section. If the screws do fall into the wiring section, refer to Tips at the end of the article.
  5. Open the left compartment and remove the rubber tray.
    • Do this using the flat-blade screwdriver and lodging it in the seam until it is well underneath the tray and pushing the tray out from underneath as shown in the image below.
  6. Remove the next set of 2 screws and remove the compartment.[3]
    • Find the 2 screws in the back that need to be removed which are circled in the image above. Use the phillips screwdriver and the long-nose pliers to remove the 2 screws.
    • Then, use your hand to grip the 2 sectioned compartment and pull to pop it out of place.
  7. Remove the power outlet wire and remove the last set of 2 corner screws.
    • Remove the wire connected to the power outlet by pressing down on the button on the back of the wire and pulling.
    • Now, the 2 sectioned compartment can be set aside in order to remove the next compartment, which is the largest one.
    • Next, remove the 2 screws at the bottom corners of the large compartment which are circled in the image above. Use the phillips screwdriver and the long-nose pliers to remove the screws.
  8. Remove the largest compartment.[4]
    • In order to remove the large compartment, press down and hold at the bottom of the large compartment door in order to reveal the seam between the top of the compartment and the bottom of the stereo.
    • Lodge the flat-blade screwdriver in the seam and push the screwdriver away from you while using your other hand and gripping the bottom of the compartment and popping it out of place. The compartment has to pop out of place towards you; therefore, you should pull with your hand from underneath and push away with the screwdriver in order to have this affect.
    • Once the compartment is out of place, pull it out of the area by making sure the compartment door is closed and the bottom of the compartment is removed first. After the compartment is removed, you have access to the wiring of the stereo.
  9. Attach the auxiliary system.
    • Attach the auxiliary box to the side of the centered compartments by the passenger seat using Command adhesive products.
    • Also, place the auxiliary box someplace low and a little towards the back in order for the wire to have enough length to reach the wiring section underneath the stereo.
  10. Pass the auxiliary wire behind the glove compartment and into the wiring section.
    • Open and empty out the glove compartment.
    • Then, push in the flexible sides of the open glove compartment so that it slides off the corner hooks holding it open.
    • Once doing so, the glove compartment will be open all the way and touch the mats. This will allow you to have access behind the glove compartment in order to pass the wire behind the glove compartment and through the hole shown in the image below.
  11. Connect the wire to the white piece underneath the stereo.[5]
    • Grab the wire passed through the hole and pull it through until you can see it in the wiring section underneath the stereo.
    • Then, connect the wire to its extension which is one of the adjacent ends of the Y cable of colorful wires.
    • Next, attach the opposing end of the Y cable, not the adjacent end, to the white piece underneath the stereo that can be seen if you peek into the wiring section and look up.
    • Use scissors and electrical tape to tape the wires of the Y cable to the wall in order to prevent the compartments to interfere with them as shown in the image below.
  12. Check to see if the auxiliary works.
    • After the connection is made, turn the car radio on and press the Aux button on the stereo.
    • The CD-C display should appear.[6]
  13. Put everything back in order using the following steps.
    • First, close the glove compartment.
    • Then, put back the largest compartment and screw it in.
      • Place the largest compartment into place by pushing it until it clicks into place.
      • If it is fitting correctly it should not move and the compartment door should be working perfectly.
      • Screw in the 2 screws that were removed in step 7 which are at the bottom corners of the large compartment.
    • Next, put the 2 sectioned compartment back into place and screw it in.
      • Reattach the wire from step 7 to the power outlet in the 2 section compartment and push that down into place.
      • Screw in the 2 screws from step 6 which are in the back of the 2 sectioned compartment.
      • Place the rubber tray back into place by just pushing it down.
    • Screw in the final 2 screws and place the plastic cover.
      • Screw in the final 2 screws from step 4 which are the corners of where the park "P" symbol is.
      • Place the plastic cover into place surrounding the shift knob.
    • Finally, put the shift knob back into park "P" and cap the small piece next to park "P".
      • No screwdriver is required for this, since the shift knob is already not in park.
      • You will be able to do this by just pressing the button on the shift knob and moving it.
      • Then, cap the small piece next the park "P" symbol and turn the car off.
    • You're done! Now you can enjoy music from your hand held device in your 2003-2007 Honda Accord.


  • Almost all of these steps should be done with little but not too much strength.
  • It is important to have the pliers in order to pull out the screws because hands can be clumsy in tight spaces. Also, if the screws fall into the wiring section, the pliers can reach where hands can't.
  • It is preferred to have screwdrivers with magnetic tips to help prevent screws from falling. These will also help retrieve the screws because they are magnetic.
  • Place all small items in a safe place where they will not get lost, such as your cup holders.
  • If you connect the auxiliary and the stereo does not read it, unplug it and try again. If it still does not work, return the item.
  • If the connection between the stereo and the auxiliary is lost while putting everything back or after you are finished, retake everything apart in order to unplug it and plug it back in for a more stable and secure connection. This should not happen if you use the electrical tape around the Y cable to keep it compact and away from the interference of compartments.


  • There is no electrical danger in this entire step by step process.

Things You'll Need

  • An auxiliary system compatible with a 2003-2007 Honda Accord stereo system, like the one below. The system should contain the auxiliary box with the wires at one end and the cord at the other end, the Y extension cable, and a male to female auxiliary extension cord.
  • A phillips screwdriver, flat-blade screwdriver, long-nose pliers, scissors, and electrical tape.
  • A set of Command adhesive strips.