Originally Posted by joelc73
Just so I'm clear, I can't run speaker cables in using RCA adapters? I need an LOC first?
As stated before, the OEM HU peak outputs exceed the XD400/4 peak input sensitivity. You can try and find out what would happen without a LOC, it is up to you. But the correct way is using a LOC.
-2015 F30 320i, Imperial/Oyster, 8AT: August 2014 ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: Gone
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone