1. Introduzione e oltreview
The USA SPEC BT45-NIS is a Bluetooth phone, music, and AUX input kit designed for select 1999-2014 Nissan and Infiniti models. This kit seamlessly integrates Bluetooth capabilities into your vehicle's existing audio system, enabling hands-free phone calls, wireless music streaming, and auxiliary audio input. It also features an onboard 2.1 Amp USB charging port to keep your devices powered.
2. Informazioni sulla sicurezza
Importante: Always prioritize safety during installation and operation. Failure to follow these guidelines may result in damage to the product, vehicle, or personal injury.
- Gestione della batteria: Follow all standard battery handling instructions. Disconnect the vehicle's battery before beginning installation to prevent electrical shorts and damage.
- Condizioni ambientali: Avoid using the device in extreme temperatures or highly humid conditions.
- Compatibilità: Use only with compatible devices and vehicle models as specified in this manual to prevent interference or malfunction.
- Installazione professionale: If you are not comfortable with automotive electrical systems or dashboard disassembly, it is recommended to seek professional installation.
3. Contenuto della confezione
Verifica che tutti i componenti elencati di seguito siano presenti nel tuo pacchetto:
- USA SPEC BT45-NIS Module
- Vehicle-specific Wiring Harnesses
- Microfono esterno
- USB Charging Port (integrated into module)
- Auxiliary Input Port (integrated into module)

Figura 3.1: Complete USA SPEC BT45-NIS kit showing the main module, wiring harnesses, and external microphone.
4. Caratteristiche principali
- Connettività Bluetooth: Enables wireless audio streaming and hands-free calling.
- Controlli integrati: Allows changing tracks and answering/rejecting calls using existing radio buttons or steering wheel controls.
- Auxiliary Audio Input: Provides a 3.5mm stereo input for connecting non-Bluetooth devices.
- Porta di ricarica USB: Features a 2.1 Amp USB port for charging mobile devices.
- Satellite Radio Compatibility: Works seamlessly with vehicles equipped with or without satellite radio.
- Audio cristallino: Utilizes noise cancellation DSP hardware and CVC (Clear Voice Capture) software for enhanced call quality.
- Music Information Display: Displays song title, artist, and album name on compatible radios (Note: Only supported by radios with a SAT or XM button or RADIO and CAT/CH buttons).
5. Compatibilità
The BT45-NIS kit is designed for select Nissan and Infiniti models manufactured between 1999 and 2014. For a detailed list of compatible vehicles, refer to the official application guide provided by USA SPEC. Please note the following specific compatibility detail:
- 2007-2012 Altima with Navigation: These models must use the BT45-INFI package, not the BT45-NIS.
6. Configurazione e installazione
Installation typically involves accessing the back of your vehicle's factory radio. The process may vary slightly depending on your specific vehicle model. Always refer to your vehicle's service manual for detailed instructions on dashboard disassembly.
6.1. Preparazione
- Raccogli strumenti: You will typically need basic automotive tools, including screwdrivers (Phillips, flathead, and potentially Torx bits), plastic trim removal tools, and a 10mm wrench for battery terminals.
- Scollegare la batteria: For safety, disconnect the negative terminal of your vehicle's battery before starting any electrical work.
- Accesso alla radio: Carefully remove the necessary dashboard trim panels and components to gain access to the rear of your factory radio.
6.2. Module and Harness Connection

Figura 6.1: Close-up of the BT45-NIS module showing MIC, USB, and AUX ports.

Figura 6.2: The various wiring harnesses included with the BT45-NIS kit for vehicle integration.
- Connect Harnesses: Locate the appropriate connectors on the back of your factory radio. The BT45-NIS harnesses are designed to plug in-line with your vehicle's existing wiring. Disconnect the factory harness from the radio and connect it to one end of the BT45-NIS harness. Then, connect the other end of the BT45-NIS harness to the radio. Ensure all connections are secure.
- Filo di terra: Connect the ground wire from the BT45-NIS harness to a suitable metal chassis ground point in the vehicle. Ensure a clean, secure connection.
- Connect to Module: Plug the main harness from the vehicle into the BT45-NIS module.
6.3. Installazione del microfono

Figura 6.3: The external microphone with its clip, designed for clear voice capture during calls.
- Microfono di montaggio: Choose a discreet location for the external microphone that is close to the driver's head for optimal voice pickup. Common locations include the A-pillar, sun visor, or steering column. Use the included clip or adhesive to secure it.
- Route Microphone Cable: Carefully route the microphone cable behind trim panels to the location of the BT45-NIS module, ensuring it does not interfere with airbags or other vehicle components.
- Collegare il microfono: Plug the microphone's 3.5mm jack into the designated "MIC" port on the BT45-NIS module.
6.4. Passaggi finali
- Modulo sicuro: Find a secure, out-of-the-way location behind the dashboard to mount the BT45-NIS module. Use zip ties or Velcro to prevent it from rattling.
- Ricollegare la batteria: Ricollegare il terminale negativo della batteria del veicolo.
- Funzionalità di prova: Before reassembling the dashboard, turn on your vehicle and test all functions of the BT45-NIS kit (Bluetooth pairing, music playback, phone calls, AUX input, USB charging).
- Riassemblare il cruscotto: Once all functions are verified, carefully reassemble all removed dashboard components and trim panels.
7. Istruzioni per l'uso
7.1. Accoppiamento Bluetooth
- Attiva Bluetooth: Turn on your vehicle's ignition and select the appropriate source on your factory radio (often a SAT or XM channel, or a specific CD changer input). The BT45-NIS module will enter pairing mode.
- Enable Device Bluetooth: On your mobile device (smartphone, tablet), go to the Bluetooth settings and ensure Bluetooth is enabled.
- Seleziona dispositivo: Cercare available Bluetooth devices. You should see "USA SPEC" or "BT45-NIS" appear in the list. Select it to pair.
- Conferma: Once paired, your device will confirm the connection, and you may hear an audible confirmation from the vehicle's speakers. The device will typically auto-connect on subsequent vehicle startups.
7.2. Streaming musicale
- Riproduzione: Once paired, open your preferred music application on your mobile device and begin playback. Audio will stream through your vehicle's speakers.
- Controllo della traccia: Use the track forward/backward buttons on your factory radio or steering wheel controls to skip tracks.
- Music Information Display: On compatible radios, song title, artist, and album name will be displayed.
- Integrazione di applicazioni: Stream audio from various apps such as Spotify, Apple Music, Google Maps, Waze, and YouTube.
7.3. Chiamate in vivavoce
- Risposta / chiusura delle chiamate: When a call comes in, press the "Answer" or "Call" button on your radio or steering wheel (if available) to accept. Press it again to end the call.
- Rifiutare le chiamate: Press and hold the "Answer" or "Call" button to reject an incoming call.
- ID chiamante: Incoming caller numbers may be displayed on your radio screen and announced audibly.
- Modalità privacy: During a call, you can toggle between hands-free mode and your phone's speaker for privacy using a button on the radio (refer to your radio's manual).
7.4. Ingresso ausiliario (AUX)
- Connetti dispositivo: Plug a 3.5mm audio cable (not included) from your non-Bluetooth audio device (e.g., MP3 player) into the "AUX" port on the BT45-NIS module.
- Seleziona fonte: Switch your factory radio's source to the AUX input (this may be the same input as the Bluetooth, or a separate one depending on your radio).
7.5. Ricarica USB
- Dispositivi di carica: Connect your mobile device's USB charging cable to the "USB" port on the BT45-NIS module to charge it. This port provides 2.1 Amps di potere.
8. Risoluzione Dei Problemi
If you encounter issues with your BT45-NIS kit, refer to the following common problems and solutions:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| No audio output / No connection |
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| Scarsa qualità audio / Statico |
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| Microphone not working / Poor call quality |
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| Steering wheel controls not functioning as expected |
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9. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Numero di modello | BT45-NIS |
| Dimensioni del prodotto | 9.5 x 2 x 7 inches (Module dimensions may vary, this is package dimensions) |
| Peso dell'articolo | 15.5 once |
| Tecnologia di connettività | Bluetooth, ausiliario |
| Caratteristiche speciali | Built-In Microphone (external mic included), USB Charging Port (2.1A) |
| Fonte di alimentazione | Elettrico con cavo (alimentazione per veicoli) |
| Colore | Nero |
10. Garanzia e supporto
USA SPEC products are designed for reliability and performance. For specific warranty details regarding your BT45-NIS kit, please refer to the warranty card included in your product packaging or visit the official USA SPEC websito. Conservare la prova d'acquisto per eventuali reclami in garanzia.
For technical support, installation assistance, or troubleshooting beyond what is covered in this manual, please contact USA SPEC customer service directly. Contact information can typically be found on their official websito o sulla confezione del prodotto.






