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Open speaker circuit


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I have a 2016 journey with the 4.3" radio screen. I decided to upgrade the speakers by cutting the speaker wires behind the radio and useing a lc7i processor to feed my amps. The radio powers up and seems to work fine however does not send audio signal. My wiring was fine and checked by a store. There is no factory amp and according to the dealership the car is showing "open speaker circuit". Any ideas what's going on and what the fix could be?

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The fix is simple enough; wire 5 watt 8 ohm resistors across the speaker lines (which is a common value though I believe the factory speakers may be even lower impedance) and the radio will think it has speakers connected.

Edited by bramfrank
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You would need to wire the resistors  across the positive and negative leads to simulate a speaker load.Not sure how warm they might get though if the volume was up loud

 

I took a quick look at a  lc7i processor   if it accepts speaker line level inputs you would think it should simulate a load to the factory system but the specs I saw said input imedance was 20k ohms

Edited by yyz
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