Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Base System: Notes
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
- through 20A fuse [No. 31, located in the fuse and fusible link box]
- to audio unit terminal 6 and
- through 10A fuse [No. 3, located in the fuse block (J/B)]
- to AV switch terminal 1 and
- to display unit terminal 1.
With the ignition switch in the ACC or ON position, power is supplied
- through 10A fuse [No. 6, located in the fuse block (J/B)]
- to audio unit terminal 10 and
- to AV switch terminal 2 and
- to display unit terminal 2 and
- through 10A fuse [No. 4, located in the fuse block (J/B)]
- to subwoofer amp. terminal 9.
With the ignition switch in the ON or START position, power is supplied
- through 10A fuse [No. 12, located in the fuse block (J/B)]
- to display unit terminal 3.
Ground is supplied through the case of the audio unit.
Ground is also supplied
- to subwoofer amp. terminal 7
- through body grounds B117 and B132.
Then audio signals are supplied
- through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16
- to terminals + and - of front door speaker LH and RH
- to terminals + and - of tweeter LH and RH.
- to terminals + and - of rear door speaker LH and RH
- to terminals 1, 2, 3 and 4 of subwoofer amp. and
- through subwoofer amp. terminals 5, 6, 8 and 10
- to terminals + and - of subwoofer LH and RH.
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.