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Can a failed BM54 amp take out the whole audio system?

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Sorry, I just re read it. I thought only one side was going off. 

You have a DSP amp programmed for non sat nav systems. 


Edited by Baris

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Got a weird issue on my sound system. After i turn the ignition on, the Amp (BM54) will sometimes turn on the Orange dot as if there's power to the unit, but there's no sound coming out of it.Also left side buttons aren't working.  It usually takes a minute or two before the system "Warms up" and then the system is working fine. There's no cutting or anything, and the unit itself has been upgraded by Carphonics. This issue was on there even before i upgraded the unit. Every now and then it does turn on but radio reception is poor or no sound is coming out of it at all.

When the weather gets warmer it takes less time to turn on. 


It has Stage 2 Amp upgrade,Bluetooth and RCA done.


This has bothered me for 5 years now and i could use some help to figure it out. I just want my radio/media to turn on right when i turn on the ignition/start the car. 


Got HiFi sound system no DSP.

Edited by Justchaosh

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That’s a weird fault! 

Need to work out where the fault is. Whether it’s the bm54 or the Hi Fi amplifier. To do this, find an old speaker, connect it into the back connector of the bm54. 

Here is the pin out 


BM54 Pinout.jpg


See if sound comes immediately. If it doesn’t, then return the bm54 to me and I will check it. 

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I know right. I've been trying to get answers but never seen anything like that.

Bluetooth seems to have some problems connecting or turning on sometimes, but i am guessing that's just because of the amp not turning on correctly.

I'll try an old speaker just to be safe. 




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