you have the speaker wires from the amp apparently passing
through the headunit - they should go directly to the speakers
(though I'm sure that's what you meant)

 

The above is correct. From amp to speakers, no headunit in that relationship.

 

Cool...I'm gonna run the speaker wires down the center console and behind the headunit.

If I ever see any of you guys, I owe you a beer.

 

Thanks for the amp recommendation, I'll likely go with the Hifonics Zeus.

 

Wait wait....why are you going behind the headunit?

Run the drivers side speaker wire down the driver's sill, and the passenger wire down the pass sill....

Keep the power wire UNDER the white plastic (youll see what I mean when you take the door sills off) and the speaker wire OVER it.

No need for you to cross behind the headunit. Waste of time, and labor.

RCAs are what counts...keep those away from the power wire, and run those down the center console (make sure you get GOOD rcas...I recommend KNUKONCEPTZ)....

 

I read on here somewhere, you need to keep the speaker and rca wires away from the power wire.

 

I have my pass. speaker wire laying directly on top of my 4 gauge power wire, and not a peep of whine. The RCAs are what carry the signal, and need to be separated. Just drop the powerwire all the way down, and the speaker wire keep at the surface level, and youll be fine.

There is MUCH more power wires and crap behind the headunit, and in the ECU area.

If you want peace of mind, by all means, I have it done with way, and not a single issue.

 

When a current passes through a wire, it generates an electromagnetic
field around the wire, which can induce a current in a nearby wire.
Power wires carry a lot of current, so they generate a strong field.
RCA cables carry a low-current signal, so any current induced in them
will be significant noise compared to the signal they're carrying. Speaker
wires carry much more current, so the induced current will be less
significant. In a perfect world, you wouldn't run any of them near
each other (or any other wires). In the real world, you make tradeoffs.
Some people have run well-shielded RCAs next to a power wire, and
have had no problems. I personally ran my RCA and speaker wires
together through the center console, and power down the passenger
side, and have no noise.

 

I have a similar Infinity amp (last generation 7520a). Same specs I think, and same look / design. NICE clean amp. Kinda large, though. Almost 12" square if I recall...

John

 

Diagram edited ^