1. Introducere
The Phonocar 4/131 Signal Adapter is designed to facilitate the integration of an aftermarket car stereo or head unit with a vehicle's original amplified sound system, such as a Bose system. This adapter ensures proper signal conversion and compatibility, allowing the new head unit to function correctly with the existing factory amplifier și difuzoare.
This manual provides essential information for the correct installation, operation, and maintenance of your Phonocar 4/131 Signal Adapter.
2. Informații de siguranță
- Deconectați întotdeauna bateria vehiculului înainte de a începe orice instalație electrică pentru a preveni scurtcircuitele și deteriorarea.
- Asigurați-vă că toate conexiunile sunt sigure și izolate corespunzător pentru a evita pericolele electrice.
- Dacă nu sunteți sigur de vreo parte a procesului de instalare, consultați un instalator profesionist calificat de sisteme audio auto.
- Do not modify the adapter or its wiring. Unauthorized modifications can void the warranty and cause damage.
- Țineți adaptorul departe de umiditate și temperaturi extreme.
3. Conținutul pachetului
- 1x Phonocar 4/131 Signal Adapter with integrated wiring harnesses
4. Configurare și instalare
The Phonocar 4/131 Signal Adapter is designed for plug-and-play installation in compatible vehicles. It connects between your new aftermarket head unit and the vehicle's existing wiring harness for the ampsistem de sunet modernizat.
4.1. Compatibilitate
This adapter is compatible with original amplified rear and front speaker systems, including Bose systems, in the following vehicle models (models without original navigation unless specified):
- Alfa Romeo: 147 (2000 onwards), 156 (up to 2005), 159 (2005 onwards), Mito (2008 onwards), GT (2003 onwards), Brera (2005 onwards)
- Lancia: Ypsilon, Musa
- Mazda: 3, 5, 6 (with Bose system)
- Mercedes-Benz: A-Class (W168, 1997-2005), C-Class (W202, 1997-2000), E-Class (W210, 1999-2002)
- Nissan: 350Z (2004-2008), Murano (2006 onwards) (with original Bose system)
- Peugeot: 806 (1994-2002)
- Porsche: Boxster (2009 onwards)
4.2. Etape de instalare
- Preparare: Ensure the vehicle's battery is disconnected. Remove the existing car stereo or head unit from the dashboard.
- Identificați conexiunile: Locate the vehicle's factory wiring harness for the audio system.
- Conectați adaptorul: Connect the appropriate end of the Phonocar 4/131 adapter's wiring harness to the vehicle's factory wiring harness. The connectors are designed to fit only one way.
- Connect to New Head Unit: Connect the other end of the adapter's wiring harness to your new aftermarket head unit. Ensure all connections are firm.
- Cablare sigură: Route and secure all wiring to prevent pinching or interference.
- Test: Reconnect the vehicle's battery. Turn on the new head unit and test all audio functions, including front and rear speakers, balance, and fade.
- Asamblare finala: Once confirmed working, carefully reassemble the dashboard components.

Figure 1: Phonocar 4/131 Signal Adapter with its integrated wiring harnesses and various automotive connectors. This image illustrates the physical components involved in connecting an aftermarket head unit to a vehicle's original ampsistem de sunet modernizat.
5. Funcționarea adaptorului
The Phonocar 4/131 Signal Adapter is a passive component that facilitates communication between your aftermarket head unit and the vehicle's original amplified sound system. Once correctly installed, it operates automatically. There are no user-adjustable settings on the adapter itself. All audio controls (volume, balance, fade, tone) will be managed directly through your aftermarket head unit.
6. Întreținere
The Phonocar 4/131 Signal Adapter requires minimal maintenance. Ensure it is installed in a dry, secure location within the dashboard, away from direct heat or moisture. Periodically check connections for looseness, especially if experiencing audio issues. Do not attempt to open or repair the adapter yourself.
7. Depanare
| Problemă | Cauza posibila | Soluţie |
|---|---|---|
| Niciun sunet de la difuzoare. |
|
|
| Calitate a sunetului distorsionată sau slabă. |
|
|
| Only some speakers are working. |
|
|
If troubleshooting steps do not resolve the issue, contact Phonocar customer support or a professional installer.
8. Specificații
- Model: Phonocar 4/131 (04131)
- Tip produs: Signal Adapter / Cable Adapter
- Dimensiuni (LxHxP): Approximately 250 x 110 x 50 mm (packaging dimensions, actual adapter unit is smaller)
- Culoare: Multi (adapter unit is black, wiring is multicolored)
- Sisteme compatibile: Original amplified car audio systems, including Bose systems
- Număr de porturi: 1 (referring to the main connection point for the vehicle harness)
- Tipul mufei de alimentare: No external power plug (integrated into vehicle's wiring)
9. Informații despre garanție
The Phonocar 4/131 Signal Adapter comes with a Garanție de 1 an de la producător from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, abuse, misuse, natural disaster, or unauthorized modification. Please retain your proof of purchase for warranty claims.
10. Asistență pentru clienți
For technical assistance, warranty claims, or further information regarding your Phonocar 4/131 Signal Adapter, please contact your retailer or visit the official Phonocar website. When contacting support, please have your product model number (4/131 or 04131) and proof of purchase readily available.
Phonocar Official Website: www.phonocar.it (Please note: This link is provided as a general reference and may not be active or specific to your region.)