When you own a Honda S2000 and need to upgrade your stereo system, this S2000 stereo wiring diagram can help. Easily upgrading the head unit in your AP1 or AP2 S2000 is much easier with this wiring schematic. Whether you are installing a new S2000 radio or putting in a set of S2000 speakers, you’ll need this wiring guide.
Much like our other stereo wiring guides, this article shows you what color and value each stereo wire is. You won’t have to guess which speaker wire goes where or which wire is what. Instead check our S2000 stereo wiring diagram to complete your stereo install.
No matter what audio component you are looking to install into your Honda, this wiring guide can help. Our S2000 stereo wiring diagram is listed by both of the generations of Honda roadster. The first year range we’ll be looking at is the 1999–2003 S2000 otherwise known as the AP1.
AP1 S2000 stereo wiring diagram
The first generation of Honda S2000 was an extremely popular addition to the stable of sporty VTEC vehicles. The Honda S2000 uses an interesting single DIN setup behind a cubby hole in the center console.
When completing a Honda S2000 stereo install or putting in an audio amplifier, you’ll need to remove the center console and shift knob.
S2000 Constant 12V+ Wire: White/Blue
S2000 Ignition Switched 12V+ Wire: White/Red
S2000 Ground Wire: Black
S2000 Illumination Wire: Red/Black
S2000 Antenna Trigger Wire: Yellow/Green
When you are looking at replacement or upgraded S2000 radios, you’ll need to stick to the single DIN design. This ensures that your upgraded S2000 radio will fit properly.
Left Front Speaker Wire (+): Green/Yellow
Left Front Speaker Wire (-): Gray/Red
Right Front Speaker Wire (+): Green/Black
Right Front Speaker Wire (-): Light Green
Once you’ve got the front fascia and the flip down door removed, you can access the four screws to the stereo. These screws should back out easily, allowing you to remove the S2000 stereo. This S2000 stereo wiring diagram allows you to upgrade your stereo without the use of a flying loom or plug and play stereo upgrade kit.
2004–2009 AP2 S2000 stereo wiring diagram
The AP2 version of the Honda S2000 underwent quite a few revisions. This facelift represented an excellent upgrade for the mid-cycle revision. Even though the S2000 was discontinued after 2009, there’s been rumors of a return.
Although there’s been plenty of changes from the AP1 to the AP2, one thing that didn’t change is the single DIN stereo. To remove your S2000 radio, make sure to follow our instructions above. Depending on the model or year of your S2000, you may have additional premium sound upgrades, including subwoofer.
S2000 Radio Battery Constant 12v+ Wire: White/Blue
S2000 Radio Accessory Switched 12v+ Wire: White/Red
S2000 Radio Ground Wire: Black
S2000 Radio Illumination Wire: Red/Black
S2000 Stereo Dimmer Wire: Red
S2000 Stereo Power Antenna Trigger Wire: Yellow/Green
Most of the subwoofers are located behind the rear seats. There’s a spare compartment behind the front seats that will allow you to get creative when it comes to mounting solutions.
Left Front Speaker Positive Wire (+): Green/Yellow
Left Front Speaker Negative Wire (-): Gray/Red
Right Front Speaker Positive Wire (+): Green/Black
Right Front Speaker Negative Wire (-): Gray/Red
If you are installing another factory S2000 stereo into your Honda, you’ll need a Honda radio code. This code will enable you to activate your factory S2000 radio once the battery has been removed.
Left Rear Speaker Positive Wire (+): Blue/Yellow
Left Rear Speaker Negative Wire (-): Gray/Red
Right Rear Speaker Positive Wire (+): Red/Yellow
Right Rear Speaker Negative Wire (-): Brown/White
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