From what I remember and tried, the only truly full range signal in the 2010 and up Wrangler radios comes from the rear speaker feed. I believe the fronts are limited and have to be summed. I gave up on the stock radio and replaced it with a Pioneer NEX unit and could not be happier. My stock radio had XM, NAV, and bluetooth but pulling it out resulted in better sound quality than using the Audio Control device. Part of the issue is the stock radio has distortion well before it hits full volume and the actual volume range, when using the Audio Control (LC6i in my case) was too limiting. Not enough range so things could be quiet and then loud when I wanted it.
Hey bud, I have a question. After 30+ years in the industry, I got out. You seem to love wranglers as much as audio, just like me. I have read a bazillion posts about people who like the results of the Audio Control processor. I saw that Bing did that install with a DSP and others have as well. My simple question is if the front 4 speakers must be summed before going to a processor. Sure, any processor will help, BUT do the 4 front channels have to be summed to get a full range signal? Can't find the answer anywhere.