I've got my 2014 WK2 on order w/ the 8.4an RA4 unit. My intention is to replace all the audio gear (except the tightly integrated RA4 unit) and I'm trying to understand the best way to do this...
What I've found so far is that the post-AMP audio is heavily filtered/EQ'd/Cross-overed... requires summing of multiple channels to get a full range output before going into another amp.
I know that the audio output from the RA4 to the AMP is static, line-level.. meaning that the volume, fade/balance is 100% controlled over the CAN bus by the RA4 to the AMP.
However... In my can-hack
days.. I found that if I removed the amp from the CAN bus, the radio would switch to a variable, full range output on front and rear audio out pins... (still possibly heavily EQ'd, but at least it's full range), assuming it was driving the speakers directly.
Can anyone confirm if this is the case? It'd be a huge help since I'm planning to swap all my speakers / amp from my 2012 WK2 into the 2014 WK2 when it gets here.. but if the audio out doesn't go variable from the RA4 without
the AMP on the CAN bus.. I'm going to have some more figuring to do...
If you need help figuring out how to test this, and are planning to have the rear driver's side quarter-panel removed.. let me know.. I'm happy to discuss the details over the phone in order to help get the answer!
THANKS to any one in advance for checking this...