radio interference after upgrades?
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Junior User
Joined: Feb 2002
Posts: 63
Likes: 0
From: Arcata USA
radio interference after upgrades?
I've finished install my stereo upgrades in my '02 F250 crewcab:
lightening audio S.5 700 amp (5 channel)
Polk DX7 rear speakers
Polk 2560 component front speakers
Polk 10" subwoofer
factory 6 disc head unit
And I have some 'interference' with the engine running. I have the "normal" hissing sound, but also a weird sound that is a ticking, almost like a turn signal (tick-tick....tick-tick....) that comes through all of the speakers, again only when the engine is running. The amp is mounted on the rear wall of the cab (crewcab), and the speakers are in the stock locations. The power feed for the amp comes straight from the stock battery, through a 30 amp inline fuse (mounted 3" from battery), with the power cable running inside the cab, down the right doorjamb area. The amp ground is at the right rear seatbelt mount (so a body ground, not frame ground) . All the speaker wires run down the center of the cab, (both speaker level input from the control head to the amp, and speaker outputs from the amp), so they are at least 1.5-2.0 feet from the power cable. I have not tried a 'filter' yet, but I though I would ask the experts here first, to get some ideas.
Thanks,
Mark Peterson '02 F250, CC, SB, V10 4x4
lightening audio S.5 700 amp (5 channel)
Polk DX7 rear speakers
Polk 2560 component front speakers
Polk 10" subwoofer
factory 6 disc head unit
And I have some 'interference' with the engine running. I have the "normal" hissing sound, but also a weird sound that is a ticking, almost like a turn signal (tick-tick....tick-tick....) that comes through all of the speakers, again only when the engine is running. The amp is mounted on the rear wall of the cab (crewcab), and the speakers are in the stock locations. The power feed for the amp comes straight from the stock battery, through a 30 amp inline fuse (mounted 3" from battery), with the power cable running inside the cab, down the right doorjamb area. The amp ground is at the right rear seatbelt mount (so a body ground, not frame ground) . All the speaker wires run down the center of the cab, (both speaker level input from the control head to the amp, and speaker outputs from the amp), so they are at least 1.5-2.0 feet from the power cable. I have not tried a 'filter' yet, but I though I would ask the experts here first, to get some ideas.
Thanks,
Mark Peterson '02 F250, CC, SB, V10 4x4
Postmaster
Joined: Mar 2002
Posts: 3,545
Likes: 4
From: Coal Region
radio interference after upgrades?
try this, re do ur ground. drill a 3/4" hole in ur body, scuff the paint and use a quality grade bolt with 2 washers and bolt. put the washer down then ur ground then slide the bolt through and put the washer on the bottom underneath and/or a lock washer and finally a bolt. if that doesnt help i would get one of those filters. i has that same problem, but i think since i have a MP3 player it was the mp3. hope this helps.
