1. Ifihan
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 ati agbohunsoke.
This manual provides essential information for the correct installation, operation, and maintenance of your Phonocar 4/131 Signal Adapter.
2. Alaye Aabo
- Máa yọ batiri ọkọ̀ náà kúrò nígbà gbogbo kí o tó bẹ̀rẹ̀ sí í fi ẹ̀rọ iná mànàmáná síbẹ̀ kí o má baà jẹ́ kí ó bàjẹ́.
- Rí i dájú pé gbogbo àwọn ìsopọ̀ wà ní ààbò àti pé wọ́n ní ààbò tó yẹ láti yẹra fún ewu iná mànàmáná.
- Tí o bá ní iyèméjì nípa apá kan nínú ìlànà ìfisílé, kan sí olùfisọ́ ohùn ọkọ̀ ayọ́kẹ́lẹ́ tó mọ̀ nípa rẹ̀.
- Do not modify the adapter or its wiring. Unauthorized modifications can void the warranty and cause damage.
- Jeki ohun ti nmu badọgba kuro lati ọrinrin ati iwọn otutu to gaju.
3. Package Awọn akoonu
- 1x Phonocar 4/131 Signal Adapter with integrated wiring harnesses
4. Eto ati fifi sori
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 ampeto ohun ti a ti fi idi mulẹ.
4.1. Ibamu
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. Fifi sori Igbesẹ
- Igbaradi: Ensure the vehicle's battery is disconnected. Remove the existing car stereo or head unit from the dashboard.
- Ṣe idanimọ awọn isopọ: Locate the vehicle's factory wiring harness for the audio system.
- Sopọ Adapter: 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.
- Asopọmọra to ni aabo: Ọna ati aabo gbogbo awọn onirin lati ṣe idiwọ fun pọ tabi kikọlu.
- Idanwo: Reconnect the vehicle's battery. Turn on the new head unit and test all audio functions, including front and rear speakers, balance, and fade.
- Apejọ ipari: 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 ampeto ohun ti a ti fi idi mulẹ.
5. Ṣiṣẹ Adapter
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. Itọju
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. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si ohun lati awọn agbohunsoke. |
|
|
| Daru tabi ko dara ohun didara. |
|
|
| Only some speakers are working. |
|
|
If troubleshooting steps do not resolve the issue, contact Phonocar customer support or a professional installer.
8. Awọn pato
- Awoṣe: Phonocar 4/131 (04131)
- Iru ọja: Signal Adapter / Cable Adapter
- Awọn iwọn (LxHxP): Approximately 250 x 110 x 50 mm (packaging dimensions, actual adapter unit is smaller)
- Àwọ̀: Multi (adapter unit is black, wiring is multicolored)
- Awọn ọna ṣiṣe ibaramu: Atilẹba amplified car audio systems, including Bose systems
- Nọmba Awọn ibudo: 1 (referring to the main connection point for the vehicle harness)
- Iru Plọlọ agbara: No external power plug (integrated into vehicle's wiring)
9. atilẹyin ọja Information
The Phonocar 4/131 Signal Adapter comes with a 1-odun olupese ká atilẹyin ọja 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. Onibara Support
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 Webojula: www.phonocar.it (Please note: This link is provided as a general reference and may not be active or specific to your region.)





