Car Audio Engine Noise Flow Chart

Level I Diagnosis

Preliminary : System completly connected - confirm engine noise.
With everything in your system installed and connected, we need to check to see if you have engine noise.  
Turn the gains on your amps up three quarter, now with the engine running, turn the system ON, and turn the volume all the way down. Slightly reving the engine, do you hear noise?  
[ Yes | No ]

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