2017 Tacoma TRD Off Road - Audio System Underpowered

I've noticed that my entune plus system is underpowered. For the awesome speakers and what not it has, it barely busts out any volume. I have 2 12" subwoofers in my vehicle before and the bass i'm okay with. It just seems like the system is a little weak. I was thinking add an amp to the stock system. What are your guys thoughts on this? I appreciate it fellers.

 

I have the JBL package. It cranks so loud and bass is so good the mirrors shake and my stomach hurts before "Let there be rock" (AC/DC) finishes. The Entune system/software is very finicky. And does not for me add any value as I use an iPhone so I disable it. I have found Blue tooth with Entune glitchy and of course the satelite reception for XM reminds me of 1970's AM radio. But when it all works, it CRANKS.

 

wait. How do you disable it with the iphone?