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Review on Upgrade Your Toyota's Sound System with Metra 70-8117 Factory Amplifier Harness for JBL Speakers | 2004-Up Compatible by Samiran Pusarla

Revainrating 5 out of 5

The best option in automotive and automotive electronics

I first tried using a factory amp with the head unit and regretted it. Lots of static and noise. The bypass worked great on my 2006 Tundra 4 door. Enough cable to get to the main unit. I found better instructions on how to use it online, but it's pretty basic. I had a bundle of cables although they were not used after installation. Which is fine, just FYI. I'll probably use these cables later to install the amp, so it's nice to have extra ones.

Pros
  • This is amazing
Cons
  • Secret