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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY Logic 7 retrofit - Need Help!



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      02-03-2023, 10:58 AM   #1
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DIY Logic 7 retrofit - Need Help!

Hello, I finished the retrofit from hifi to prologic 7, the car is a bmw e90, mask2 navigation with small display 2008, amp prologic 7 2008 from a bmw e87 (I know that bmw e87 only have 10 speakers on prologic7), after coding the sound works, I did a preventative and updated the amp, I wrote the car's VIN to the amp, the problem is that I have no sound on the central speaker on the dashboard and on the 2 extra speakers on the back. can you please help me with any information? I tested every channel in inpa, all channels give me an acoustic signal, but I don't have an audio signal on that 3 speakers (which doesn't exist on the bmw e87, the amp being taken from the e87, in case it's related!) Thank you !!!
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      02-04-2023, 06:35 AM   #2
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