Aftermarket head unit and factory amp (Hyundai - Monsoon audio)

Lowkey

Member
10+ year member
Nov 5, 2011
122
15
I have a 2003 Hyundai Santa Fe with Monsoon audio. I installed an aftermarket head unit using the harness specifically for my Santa Fe w/Monsoon audio.

I had to connect the blue wire in the harness to my receiver in order to get audio so I know that Monsoon amp has to be on. Am I running off the Monsoon amps power or the head units? Both?
 

SlugButter

CarAudio.com VIP
Nov 5, 2019
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1,758
The blue wire only tells the amp to turn on. Amplifier power comes directly off the battery.
 

Lowkey

Member
10+ year member
Nov 5, 2011
122
15
  • Thread Starter Thread Starter
  • #3
The blue wire only tells the amp to turn on. Amplifier power comes directly off the battery.
I understand, I only mentioned the blue wire because it proves the factory amp has to be on in order to get audio. So both the head unit amp and factory amp are on. So my question is which one is powering the speakers? Also what are the negatives to running it this way? etc
 

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