[Dill-the 65ImpSS]

I'm once again turning to the braintrust for helping me decide how to run my wire for my stereo install to avoid interference...

See my quick drawing below to follow along:
4AWG power wire - D
Amp lead wire - B
Interconnects - B
wire for sub level remote - B
front speaker wires -A
Ipod hardwire to deck - C

This sound suitable?

[58Apache]

What kind of interference are you worried about?

The general rule of thumb is to keep wire lengths as short as possible. This will not only reduce resistance, but reduce likeliness of picking up interference. Speaker wires are less likely to pick up audible signals, so make them the beast of burden for length, and keep wires between head unit and amps and any other devices as short as possible.

Keep wires as far away from devices that may cause interference if at all possible.

Use a quality wire, and make sure all components are well GROUNDED!

Finally, if you do get any interference, you can get a filter that goes in line with the power cable that will send most garbage signals (picked up by the cables in the power line or alternators with a noisy output) to ground or filter it out. It's a combination of a capacitor and choke coil (opposes any change in current) and some of them have a second capacitor called a pi filter.

Most high end car stereos now use a super large capacitor in the power circuit to reduce fluctuations when power switching (switched amps) and for short massive increase demands for power (12V). However, these capacitors are so big they are relatively useless for sending audible garbage signals to ground.

If worse comes to worse, although I have never seen it in a stereo ....yet, you can get shielded wire that has a solid or mesh shield over the center conductor. That shield is attached to ground and will protect the center conductor from picking up any stray signals from induction. This should be your last resort though as most RCA cables are already shielded in this way I believe?...so it would likely just be speaker wires...and they aren't likely to pick up much ...unless there's someone with a powerful radio that will bleed into anything you have anyway.

I'd go with your plan and see if you have any problems before chasing gremlins that might not give you a problem.

Steve

[Dill-the 65ImpSS]

I feel very confident in my plan, I was just getting a final nod I suppose!! HAHA

Basically I know I wouldn't wanna run all of those wires right next to eachother cause I would be destined for audio problems from the big gauge wire juicing my amp!

I'll take you awesome reply as a thumb up?? Thanks Apache