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Brz_racer · 02-02-2019, 08:38 AM

Here is how the setup is supposed to work...the dash and rear speakers are powered off the head unit, door speakers are powered off the amp in the trunk. I suspect either the factory amp is disconnected or even missing.

02-02-2019, 08:38 AM	#5
Brz_racer Senior Member Join Date: Aug 2016 Drives: Subaru BRZ Location: Seattle Posts: 116 Thanks: 14 Thanked 45 Times in 33 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Here is how the setup is supposed to work...the dash and rear speakers are powered off the head unit, door speakers are powered off the amp in the trunk. I suspect either the factory amp is disconnected or even missing.