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Nov 9, 2005 | 07:33 PM

DELBERT

Thread Starter

Junior User

Joined: Apr 2004

Posts: 65

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From: HUDSONVILLE MI

Sub

HOOKED up a amp and sub now when I hit the brakes or turn on the lights or use the power window I can hear a thump in the sub why????

Nov 9, 2005 | 07:51 PM

ATC Crazy

Hotshot

Joined: Jun 2003

Posts: 12,350

Likes: 4,383

From: SW VA

The electricity going through your vehicle is interrupting the frequency of the sub/amp. It would do the same thing in my van when I was talking on the CB and listening to the radio at the same time. I really dont know what a good solution would be?

Nov 9, 2005 | 09:22 PM

DELBERT

Thread Starter

Junior User

Joined: Apr 2004

Posts: 65

Likes: 0

From: HUDSONVILLE MI

k thanks if ya think of something let me know cause now I tried my plow and every time I hit the plow switch I can hear it to

Nov 9, 2005 | 10:25 PM

RangerPilot

Post Fiend

Joined: Jul 2005

Posts: 8,462

Likes: 4

From: Durant, OK (SOSU)

You need to run your sub signal wires on the opposite side of the truck from all your power wires, to your amp and everything else. That keeps interference from getting in the lines.

Nov 10, 2005 | 10:02 AM

fordboy_52

Lead Driver

Joined: May 2004

Posts: 6,461

Likes: 6

From: Abilene Kansas

u have interference, this could be from the ground. Its prolly from your amp leads tho. Did you run your preams near any major power wires? this is why you need to follow this when installing amps:

https://www.ford-trucks.com/forums/s...d.php?t=398953