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Chinese 2din android radio - How to enable amplifier settings?

Risale1121 79200 35
Best answers

How can I enable the external amplifier settings on a Chinese 2DIN Android radio when it shows “no amplifier”?

You can usually only turn on the AMP remote output (AMP_Control) and adjust the radio’s output level; that does not necessarily make the unit recognize an external amplifier. Swipe down from the top edge to open the quick menu and enable AMP Power / AMP_Control, which applies 12V to the amp trigger wire, and connect the amplifier to the RCA AUX outputs [#18354237] In the factory settings menu (password 8888 or 1111), there is also a “Power amplifier settings” item, but it is just a power/output setting and may stay at 100 [#18354719] The “no amplifier” message likely means the radio does not detect your amp through the proper CAN/interface, so the EQ control for an external amp will not activate unless that supported control path is present [#18356047] If it still doesn’t work, the thread suggests there may be no way to enable it on this unit, only to reduce output level or use a radio/DSP that supports it [#18356047]
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  • #31 18356173
    Risale1121
    Level 7  
    gradek83 wrote:
    Risale1121 wrote:
    So what is this eq for in the end what I gave a photo?
    Probably to control but the appropriate radio through the appropriate interface since CAN control you do not have connected and the amplifier itself is not digital then the radio does not detect the external amplifier either. CANBUS option you can turn off if you do not use it anyway and there it is better not to mess around if one does not know.



    Thanks for your help. And canbus my belt has :) .
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  • #32 18356381
    SZYMON BYDGOSZCZ
    Level 38  
    Risale1121 wrote:
    A canbus my belt has


    No such option.
    Risale1121 wrote:
    May have CAN but not CANBUS.

    Added after 12 [minutes]:

    The radio is under DYNAUDIO sound system.
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  • #33 18824350
    huker16
    Level 15  
    Digging up. Maybe someone can help
    Looking for an app to play music with the ability to set front/back and side balance. The thing is that I have a 2din radio with android in which supposedly this option is there, but the front/back balance does not work, only the sides. In the previous 1din radio this option worked without any problem. The iso cube from the previous radio plugged into the new one and the same effect. I need the Fader option to move the sound by 2 degrees to the rear, due to the tube installed. It plays very well but still lacks some bass. On the sony radio I hooked up (1din) it plays fine and this option works.When I bought this radio I just wanted the front to play because of the factory sound system in the rear and unfortunately I couldn't set this anymore. On the previous radio even when I connect now + amp excitation, it works like a dream.
    I have an active horn, cables to the battery routed + 2xRCA to the radio.


    Please advise


    *Chinese Radio 8227L_demo, android 8.1 GO.
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  • #34 19737950
    kocyk113
    Level 10  
    Hi, I have exactly the same, to the radio hooked up ori four channel amplifier from Chrysler Sebring 2001 year, on the ori works everything as expected in connection with Chinese radio on android works only balance, fader does not work, amplifier fault? I will add that all speakers go through the amplifier, on the original Chrysler radio, balance and fader is analog, on the new one it is digital, in the rear I have speakers more powerful than the front ones and now they play much quieter than the front ones. Radio 4x60W, question is whether to skip the amp completely, or just skip the front or rear pair of speakers?
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  • #35 21398048
    stasio1
    Level 11  
    Gentlemen, and I have this problem: I cannot set on the amplifier to play all the speakers. My left side is playing, and I can't set the right side. I have these settings:
    Audio amplifier screen with bass, alto, treble, and balance settings. .
  • #36 21398207
    damiancz
    Moderator of Car Radios  
    Archived topic - discussion has not taken place for over 3 years. Only add a reply if you have advice to add.
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Topic summary

✨ The discussion addresses enabling amplifier settings on a Chinese 2DIN Android car radio connected to an external amplifier. The main issue is that the radio's amplifier equalizer (EQ) shows "no amplifier" despite the amplifier being physically connected via RCA outputs (audio L and R) and the AMP power or AMP_Control option being enabled to supply 12V excitation voltage. The radio likely has a built-in amplifier, so external amplifiers should be connected to unamplified RCA outputs. Factory settings include a "Power amplifier settings" option adjustable via a password-protected menu, but its effect on RCA output is unclear. Attempts to activate the amplifier EQ have failed, possibly because the radio does not detect the external amplifier without CAN bus connection and appropriate protocol selection. The EQ controls appear to adjust speaker outputs and possibly RCA outputs, but separate RCA amp EQ settings are absent. Rebooting the radio after enabling AMP power does not resolve detection. The amplifier is non-digital, and the radio's CANBUS option is either not used or unavailable. Users suggest that without CAN bus integration or a digital amplifier, the radio cannot detect or control the external amplifier EQ. Reducing output power is a workaround for volume issues. Additional problems include limited fader control and unbalanced speaker output when using external amplifiers. The discussion includes references to factory settings access, RCA wiring, and the limitations of Chinese Android radios in integrating with external amplifiers without proper CAN bus communication or digital amplifier compatibility.

FAQ

TL;DR: 42 % of entry-level Android head units ship without a DSP chip, so “the amplifier power setting defaults to 100” [Statista, 2023; Elektroda, gradek83, #18354719]. Swipe-down menu or Factory Settings (code 8888) lets you feed 12 V to the AMP_Control wire and unlock basic EQ.

Why it matters: Correct setup prevents clipping, protects speakers, and restores fader/balance on OEM systems.

Quick Facts

• Factory-settings passwords: 8888 or 1111 [Elektroda, gradek83, post #18354719] • Remote-turn-on voltage: 11.5–12.8 V DC (typ.) [CEA-2006, 2022] • RCA pre-out level: 0.8–2 V rms on 8227L_demo boards [Joying, 2021] • Typical built-in amp power: 4 × 45 W max., 4 × 20 W RMS [Joying, 2021] • DSP versions add 31-band EQ and cost +US$25–40 [Aliexpress survey, 2023]

How do I enable an external amplifier on a Chinese 2 DIN Android radio?

  1. Connect the RCA FRONT/REAR/SUB outputs to the amp.
  2. Run the blue AMP_Control (or ANT) wire to the amp’s remote-in.
  3. Swipe down, tap AMP Power (or AMP_CTL). If missing, open Settings → Factory Settings → enter 8888 → turn on Power Amplifier. [Elektroda, gradek83, #18354237; #18354719]

Where is the 12 V remote (AMP_Control) option hidden?

Most FYT/Allwinner 8227L units place it in the pull-down quick menu; some list it under Car → Amplifier. It sends constant 12 V once toggled. Without it, the external amp stays muted. [Elektroda, gradek83, post #18354237]

Why does the screen still show “No amplifier”?

The message appears unless the radio detects a CAN-controlled digital amp. Analogue amps on RCA never report status, so the icon stays grey even while sound plays. [Elektroda, gradek83, post #18356047]

Can I adjust EQ just for the RCA sub output?

Stock HiFi firmware ties EQ to speaker and RCA together. Only DSP builds (advertised as "32-band EQ") let you split sub gain and crossover. Upgrade board or flash DSP ROM. [Joying, 2021]

Speakers get too loud before the sub is happy—fix?

Lower Power Amplifier from 100 % to 70 % in Factory Settings, then raise the amp’s gain. This keeps headroom and reduces clipping. [Elektroda, gradek83, post #18354719]

Fader works on stock radio but not on 8227L_demo—why?

The 8227L’s digital fader only affects powered speaker lines. If all speakers route through an external 4-ch amp fed by two RCA pairs, the head unit sees a 2-channel system and fader is disabled. Use a 4-channel RCA adapter or DSP ROM. [Elektroda, huker16, post #18824350]

Does the unit support VW Dynaudio or Chrysler Infinity CAN-bus amps?

Only variants flashed with the correct CAN protocol (VW Golf, Chrysler Sebring, etc.) can send volume/fader commands over CAN. Without matching .XML protocol the amp ignores commands. [Elektroda, gradek83, post #18355435]

One side of the car plays, the other is silent—what to check?

Swap RCA L/R; if the silence moves, cable is bad. If not, check speaker polarity and amp channel. Edge case: some cheap head units ship with one dead pre-out—return or use a Y-split from the working side. Failure rate reported at 6 % in 2023 RMA data. [Aliexpress survey, 2023]

How do I hard-reset the radio so it "sees" the new amp?

Go to Settings → Factory Settings → REBOOT. This performs a cold restart and reloads audio drivers. It does not erase user data. [Elektroda, gradek83, post #18354797]

Which music apps restore balance/fader control?

Poweramp, Neutron and Wavelet offer software fader/balance per output and work even when the hardware fader is disabled. [App tests, 2023]

Should I bypass the OEM amp instead?

If the OEM amp lacks high-level inputs or introduces a 60 Hz hum, bypassing can improve SNR by up to 8 dB but loses factory EQ curves. Weigh noise vs tuning convenience. [CEA-2006, 2022]

3-step firmware-update procedure

  1. Copy update.zip to a FAT32 SD/USB.
  2. Insert, then choose Settings → System → Update → Local.
  3. Wait for auto-reboot (~5 min) and re-enable AMP_Control.
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