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Metra Car Stereo Wire Harness IBR WHCR2 Questions & Answers
Nakamichi NA6605 in a ford 2002 excursion the install went fine with proper harnesses Metra after installing new speakersI am having a problem with the unit going in to mute mode
The issue you're describing with your Nakamichi NA6605 head unit muting itself after installing new Infinity speakers could be caused by a few different factors. Let's go through some troubleshooting steps to help pinpoint the problem:
1. **Impedance Mismatch:** You mentioned that you replaced the factory speakers with Infinity 6x8 REF-8632cfx speakers. These Infinity speakers have an impedance of 3 ohms, while the original speakers were likely 4 ohms. This difference in impedance could potentially cause issues with the head unit's output stage. Some head units are designed to handle a specific range of speaker impedances. Make sure the Nakamichi unit is compatible with 3-ohm speakers. If it's not, this impedance mismatch could indeed lead to the behavior you're experiencing.
2. **Wiring and Connections:** Double-check all your wiring connections. Make sure that the speaker wires are properly connected and that there are no loose or exposed wires that could be causing a short circuit. Incorrect wiring can cause the head unit to detect a fault and enter mute mode.
3. **Power Supply and Ground:** Ensure that the head unit is receiving a stable power supply and that the ground connection is solid. Voltage drops or poor grounding can lead to unstable operation.
4. **Short Circuit Protection:** Many modern head units have built-in protection mechanisms that detect short circuits or incorrect impedances. If the head unit detects a problem, it might enter mute mode to prevent damage. Check the head unit's user manual to see if it has any relevant protection features.
5. **Head Unit Settings:** Check the Nakamichi unit's settings, especially those related to speaker impedance or output settings. Some head units allow you to adjust output settings based on the connected speakers.
6. **Firmware Update:** If there's a firmware update available for your Nakamichi head unit, consider updating it. Firmware updates can sometimes resolve compatibility issues.
7. **Test the Speakers:** To rule out the possibility of a faulty speaker causing the issue, you can temporarily disconnect the Infinity speakers and see if the head unit behaves differently.
8. **Professional Inspection:** If none of the above steps resolve the issue, it might be best to seek the assistance of a professional car audio installer or technician. They have the expertise and tools to diagnose and address complex issues with car audio systems.
Remember, electrical issues in car audio systems can be complex and require a methodical approach to troubleshooting. If you're not comfortable diagnosing the issue yourself, it's best to seek professional assistance to ensure a safe and accurate resolution.
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