Originally Posted by kmarei
does it have to be triggered by the sub outputs?
or is the voltage on the fronts/center/rears too weak?
The issue is not that the voltage is weak, it is that it is below the threashold level and very intermittent.
I have not tried the other speakers outputs but they may work with a PAC TR-4.
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone
-2002 E46 330i Orient Blue/Natural Brown, 5MT: Gone