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Old 10-30-2004, 07:40 PM   #1
wrxinmn
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Default @#&@, more grounding problems.

i was getting some crackling with my under-seat amp grounded under the back seat (~3ft) so i cut off all but ~12-18" and grounded it under the front seat with the paint scraped away and i still get some cracking.. especially when i accelerate quickly or when im idling at lower speeds. what the heck is the problem and how do i correct it? its really irritating to get everything installed and have it sound like a bad FM connection.
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Old 10-30-2004, 07:59 PM   #2
AzN121184
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do u get popping when braking?
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Old 10-30-2004, 08:28 PM   #3
wrxinmn
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70% while accelerating, 25% at and braking, 5% whenever
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Old 10-31-2004, 01:31 AM   #4
skyhawk
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Are you running rca cables. You didn't run the rca's with the power wire did you. If you did, seperate them. If not just try another grounding spot.
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Old 10-31-2004, 09:37 PM   #5
wrxinmn
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ive got rca cables going.. nothing really follows anything for more than a few inches but there is some overlap.

the cracking is especially bad when the stereo is turned off. any idea what in the world is causing this?? at first i thought because i had 3 speakers hooked in parallel to one channel (twice) it might be problematic but i doubt thats it if its cracking most when theyre not even running.
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Old 11-01-2004, 04:15 AM   #6
roadtalontsi
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you could try putting a bigger ground from your battery to the chassis. I've seen this done on a friends honda. went from stock grounding, to w/e is bigger then 4ga, cant remember the size rating after that. Car RAN noticably smoother, along with starting, not to mention sound quality. jl 300x4 and 500x1 amps. Just an idea, good look.
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Old 11-01-2004, 10:38 AM   #7
elk29n
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Ground mod does help our cars overall. It did to mine
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Old 11-01-2004, 10:59 AM   #8
shinsain
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Run your RCA and power cables on OPPOSITE sides of the car. This is the best way to avoid what you're talking about. If you "have a couple inches of overlap" this can definitely make what you're talking about happen.
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Old 11-01-2004, 12:02 PM   #9
teiva-boy
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Quote:
Originally Posted by shinsain
Run your RCA and power cables on OPPOSITE sides of the car. This is the best way to avoid what you're talking about. If you "have a couple inches of overlap" this can definitely make what you're talking about happen.

Overlap is okay, as long as it's perpendicular. The cables should not run parallel with each other, and if they are going to pass each other, they need to cross them to form a "T."
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Old 11-01-2004, 10:39 PM   #10
wrxinmn
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checked my wiring and there isnt much instance of the rca's being next to or even intersecting the power cables. the one to the sub runs over them but that is treating me fine.

i cut the ground wire down to about 8" and its better but it still cracks at idle or slow speeds- have not noticed problems at ~30mph, havent gunned the acceleration yet as ive only been in town.
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