I plan on running a 4 channel amp for my new Mopar Kicker speakers and Quadratec tweeters in my 2013 Wrangler Unlimited.

Since voice calls, nav directions etc are played on front speakers only, do I need to run RCAs from my head units “front” speaker pre-outs as well as an RCA for the “rear” preouts, both to the 4-channel, to retain the phone call audio to the front speakers?

This seems like a stupid question, it’s been over ten years since I installed an amp.

I have the Sony xav-ax3250 head unit which has pre-outs for front, back and subs.