We started an audio system uprade in this 2015 Toyota 4Runner awhile back. The client is working in stages toward his goal of amazing sound quality for his SUV. You can see the original work here. In Step 3, we added an amplifier, subwoofer and new source unit.
The client really wanted CarPlay, so we let him connect his phone to a Pioneer AVH-4200NEX in the showroom. He loved it, and we added it to the plan for his truck. To maximize the capabilities of the Hertz DSK165 speakers that we installed, the client chose a Hertz HDP4 amplifier. The amp also powers a single Hertz DS300.3 subwoofer to give the system some warmth and depth. We mounted the amp under the passenger seat, using our metal bracket mounting system, to keep it out of the way.
The Kenwood radio looks great with the new dash kit, and is easy to see and use.
The client was amazed at how much better the speakers sounded with a real amplifier powering them. The addition of the subwoofer had the most impact on the sound of the system. CarPlay was the icing on the cake!
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