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[terceltyler]

Yo
I have an 08 Mazda b2300 and I put in a new head unit the other day and am very impressed with the Eclipse CD3200. So I installed my amp and sub today, an MTX sub and amp, which I did get used but from a reputable guy. Anyway I get a whine that changes with engine RPM. It doesn't do it when its on accessory, just when the engine is running. Help a brother out

 

[Genuine Rolla]

are any wires touching/near any factory ones..?

 

[terceltyler]

yes my ground is using a common ground with something I found under my seat

 

[Genuine Rolla]

I wonder if you changed the ground, if it would make a difference...

 

[terceltyler]

Its possible.
I wonder also, I have a set of monster RCA's and there is one strand or wire peeking out from one end of the cables...