Upgrading Alpine System to Skar System

[flashover95]

I have 2014 Ram 1500 Longhorn with Alpine system. Im planning on keeping factory radio but replacing all speakers, amp and subwoofer with Skar audio (2 12" subs, 4 6x9, 2 1" tweeters, 3 3.5 speakers, 2 amps running mids and highs, 1 amp for subs). What else do I need to make it all work with my factory headunit?

 

[sullivan]

Highly recommend getting this https://catalog.pac-audio.com/catalog/amppro-amplifier-interfaces/ap4-ch41-r2
You can find it line for around $300. They used to be cheaper, pre-covid.

 

[scubalineman]

Will this work for a 2013 with the 8.4. It says 2014 and up qnd I was wonderin why 2013 wouldn't be included