Adding LOC and Amplifier but keeping fade/balance in the HU
I have a 2013 Trailhawk with the Alpine system and 430N headunit, and would like to do an audio upgrade. After searching through the many threads on the topic, I want to run this past the experts out there and see if this makes sense.
I want to keep the HU and especially the balance/fade functions, and the steering wheel controls.
If I use an audiocontrol LC7i after the factory amp, I will take the signal from the front tweeters into the main input, the front doors into channel 2, and the sub into channel 3. The LC7i would send the summated signal to my aftermarket amp.
So here's my question. To maintain the fade/balance controls in the HU, should the rear door speakers still be fed by the factory amp? The rear hatch tweeters and center dash would also still be fed by the factory amp.
I'm thinking that if you feed rear speakers from the aftermarket amp (which is obviously downstream from the HU signal to the factory amp) you will lose ability to fade/balance from the HU.
Does that make sense? Thanks