2004 575M- Becker 4372 Radio Issue- On/ off Intermittent | Page 2 | FerrariChat
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2004 575M- Becker 4372 Radio Issue- On/ off Intermittent

Discussion in '456/550/575' started by joey91, Nov 7, 2024.

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  1. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
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    Terry H Phillips
    #26 tazandjan, Jan 14, 2025
    Joey- Ian is much more help on wiring issues than I am. My stereo has not been turned on for years.
     
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  2. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #27 joey91, Jan 15, 2025
    thank you Terry!! appreciate the honesty!
     
  3. Patrik550

    Patrik550 Karting

    Nov 28, 2006
    173
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    Patrik
    #28 Patrik550, Jan 15, 2025
    Hi again, In my 550-case it wasn't the wiring of the radio, it was a transistor in the radio (looked like a mushroom) that was causing the on-off phenomena. However, what caused the transistor to blow up in the first place was the AC compressor fault. Anyway, could be different in the 575...
     
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  4. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #29 joey91, Jan 15, 2025
    thanks! it really could be an issue within the radio. i know theres a company out in the US that will repair the Becker for abut 300-400$. i just need to confirm 100% that its actually the radio.... i need to connect my voltmeter to harness when i have a chance to see whats up.
     
  5. Patrik550

    Patrik550 Karting

    Nov 28, 2006
    173
    Sweden
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    Patrik
    #30 Patrik550, Jan 18, 2025
    It is pretty easy to open the radio case. And even if you're not a radio technician, you'll see straight away if something is wrong "if" you see a blown up transistors etc.
    A repair should not cost more than 20-30 USD...
     
  6. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #31 joey91, Jan 18, 2025
    Thanks for the info!! Let’s say a transistor is blown… would the radio still intermittently work when it feels like it Like in my case? Thanks for the heads up I’ll try and open it up and take a look!
     
  7. Patrik550

    Patrik550 Karting

    Nov 28, 2006
    173
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    Patrik
    #32 Patrik550, Jan 20, 2025
    It did for me, BUT the real cause was the AC compressor that started this issue. As I explained in previous threads, couldn't repair it in Sweden. Had to buy a new compressor (ordered by local Ferrari agent) at around USD 3,000. Since then, no issue.
     
  8. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #33 joey91, Jan 20, 2025
    you have a 550 though right?
     
  9. Qavion

    Qavion F1 World Champ
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    Ian Riddell
    #34 Qavion, Jan 20, 2025
    The 550 radio and HVAC system uses the same fuse. The 575 doesn't. It's not likely the two are related.
     
  10. Patrik550

    Patrik550 Karting

    Nov 28, 2006
    173
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    Patrik
    #35 Patrik550, Jan 22, 2025
    Correct, I have the 550, and are not familiar with 575
     
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  11. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #36 joey91, Jan 29, 2025
    Has anyone had an issue with this radio where the backlight ( green) illumination just suddenly stopped working? the power button is still illuminated but nothing else lights up.... are there bulbs inside? is it one bulb? could something have shorted?
     
  12. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #37 joey91, Jan 31, 2025
    hi all,

    can someone help with the attached? to the left of the radio in the tunnel was this male/female connection with 4 wires. one wire is orange, one is black one is brown and theres a beige wire ( disconnected). does anyone know what this connection is for? should i splice back the wire and reconnect with a new pin? any idea why it would be disconnected? everything seems to work fine....
     

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  13. Qavion

    Qavion F1 World Champ
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    Ian Riddell
    #38 Qavion, Jan 31, 2025
    Last edited: Jan 31, 2025
    Possibly the cabin/interior temperature sensor connector. Two wires might be for the sensor itself and the other two wires may be for the small fan motor which sucks in air so that it can be sampled. Look for a small circular grille in the dash to the right of the steering column.

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    I think the fan wiring is orange and black. I don't know how loud the fan is, but perhaps you can test the suction of the sensor with the plug connected, then disconnected.

    I used to use 1 ply of toilet/tissue paper to check the suction of the fans on aircraft cabin sensors. Sometimes they were wired up incorrectly, and blew instead of sucked.
     
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  14. Qavion

    Qavion F1 World Champ
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    #39 Qavion, Jan 31, 2025
    P.S. The fan should work with just the key turned on.
     
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  15. joey91

    joey91 Rookie

    Nov 7, 2024
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    Joey De Sousa
    #40 joey91, Jan 31, 2025
    Great!! Thank you I will test it out for sure.
     
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