I cannot get audio from an iPhone 6s with a 35mm to RCA audio cable in the center console. Yes, I've set the audio to AUX, full volume, and even tried setting the transmission to park and setting the parking brake, but still no output via the RCA cable. The BOSE system works perfectly with AM, FM, CD's etc., and there is power to the console power outlet.

What could cause this? Could this be a simple fuse issue? Or perhaps a broken ground wire on the RCA plug?

 

Did you ever figure this out? I'm having the same issue. Although, I have an iPhone 7 with the lightning cable so I had to get a lightning to 35mm aux converter as well. Let me know!