406 FM radio problem
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  1. #1
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    Default 406 FM radio problem

    We have a problem with the standard 406 radio. On FM it will work OK for about 30 min then stop abruptly. AM will work OK and after 10 or so min FM will work again for a short while & stop again.
    Has anyone had this or a similar problem and found a fix? I have searched but not found an answer.
    PLUS, what do the removal tools look like? How long?
    Thanks
    FarmPug

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  2. #2
    1000+ Posts Peter Chisholm's Avatar
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    First of all, are all speakers working? If not, the radio power amp may be seeing a short or open circuit and may be going into thermal shutdown.

  3. #3
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    Depending on the model (I assume you have a D8?). To remove the original radio you will need two pieces of light coat hanger wire about 80-100 mm long. If you look closely you should see a pair of holes on either end of the radio. Bend the two pieces so that the ends go into the holes. Push them gently till they stop. This should then allow you to draw the radio out.

    Both of our D8 cars have after market CD players memory of whether or not the original radio has a detachable surround is unclear. ( it might cover up the holes). If it had one, gentle prying should get it off without breaking it.

    Generally these radios aren't worth repairing. It's cheaper to plug in a new CD player or head unit. Supercheap have the plug-in looms on the shelf which make the wholes process very easy
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  4. #4
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    Default FM Radio problem

    Car is a D9 (sorry for not mentioning this) All speakers work...(when they work. what?)

    Has anyone had anything to do with repairing standard radios? I do not want to lose the display if I fit an after market head unit.

    Thanks,
    FarmPug

    Quote Originally Posted by pugnut1 View Post
    Depending on the model (I assume you have a D8?). To remove the original radio you will need two pieces of light coat hanger wire about 80-100 mm long. If you look closely you should see a pair of holes on either end of the radio. Bend the two pieces so that the ends go into the holes. Push them gently till they stop. This should then allow you to draw the radio out.

    Both of our D8 cars have after market CD players memory of whether or not the original radio has a detachable surround is unclear. ( it might cover up the holes). If it had one, gentle prying should get it off without breaking it.

    Generally these radios aren't worth repairing. It's cheaper to plug in a new CD player or head unit. Supercheap have the plug-in looms on the shelf which make the wholes process very easy

  5. #5
    1000+ Posts Peter Chisholm's Avatar
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    I have a D9 and your'e right although similar to a D8 there are differences. I'm afraid the only maintenance I've done on the radio/cd player was when I had to remove and dsconnect the radio/CD player to clean the laser lens (carefully with cotton buds and isopropyl alcohol). For what it's worth, disconnecting the unit didnt disrupt anything other than losing the progrsamming of stations.

  6. #6
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    Default 406 replacement radio

    Thanks, that is comforting that at least I will not have to acquire the radio code that I don't have.
    I have the radio out & apart now & it looks a bit hopeless for any repair. A lot of surface mount devices, ICs & impossible to replace parts.

    So, It looks like this may become a "How do I interface to original 406 wiring & controls" thread as a "normal" head unit seems the sensible option from here i.e. better connectivity, greater power, ease of later repair/replacement.

    Does anyone have any good ideas on replacing the radio/CD player?

    Thanks,
    FarmPug


    Quote Originally Posted by Peter Chisholm View Post
    I have a D9 and your'e right although similar to a D8 there are differences. I'm afraid the only maintenance I've done on the radio/cd player was when I had to remove and dsconnect the radio/CD player to clean the laser lens (carefully with cotton buds and isopropyl alcohol). For what it's worth, disconnecting the unit didnt disrupt anything other than losing the progrsamming of stations.

  7. #7
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    Job done.
    I removed the original radio & opened it up as best I could. I suspect the problem is in the FM tuner as this is the only thing that stops working. Unfortunately this is very hard/impossible to get to AND there are a lot of surface mount components which are notoriously hard to repair. So I took option B and fitted a new head unit.

    While this was an easy fit (the new fascia is on order) the wiring is proving to be more tricky. Initially I just plugged the ISO to radio patch lead in and the radio works. But, if turned off it would switch on when a door was opened or the ignition switched on. Uh?. It turns out that the "standard" ISO connections can be different in 'Peugeot land'. The IGN 12 V and continuous 12V wire are swapped - so a relatively easy fix.

    Now the only problem is that the radio will not switch off when the IGN is switched off.
    Has anyone had this problem and can suggest a fix or work around?

    Regards,
    FarmPug
    A aftermarket replacement radio head unit

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