LED Lighting and Stereo interference

[owl_93]

Not sure if any of you have any experience with this but you might be able to help. First some background info:

I have a aftermarket stereo installed as well as multiple LED bars.

*180 watt front bumper bar
*54 watt behind grill
*500 watt on roof
*2x18 watt rear facing camp/backup/tailgater lights

Tonight on my way home I was messing around on the road and I flipped on the 500 watt spot bar. I noticed the radio station I was listening to went to static and returned to normal after turning off the bar. Tried it a few more times to make sure it wasn't a fluke. The I tried it with the rear facing lights because they are a fraction of the power and nowhere near my antenna. Same deal. Static. I have yet to experiment with an internal audio source like music on my phone.

I'm wondering if this is due to crappy wiring harnesses, similar to what is seen with cheap cigarette lighter USB transformers. (harnesses arent transformers, just simply relays) Or if it is something else.

Have any of you seen this kind of thing before? Anyone with LEDs or other external electrical stuff experience this kind of thing?

 

[08grey]

It's likely a ground loop. Google it it may take several tries to find a proper grounding spot that won't interfere.

 

[Chiggy]

^^ Yup, ground issue. One of the trucks at my work has a similar problem with the safety strobe lights they added to the headlights and taillights. I'd get a nice quality relay harness for your lightbars and rewire them.

 

[owl_93]

It's likely a ground loop. Google it it may take several tries to find a proper grounding spot that won't interfere.

I've grounded one bar directly on the battery itself, the rears on the same ground that my sub amp is on (cause its near the rear of the car and I only had so much length on the harness) and two bars on a bolt that some factory stuff is grounded on (on a bolt under the hood on the windshield side towards the center there is a bolt with something going to it) so, basically the issue exists no matter which ground I use so I'm guessing its what Chiggy is saying and I just have POS relays in the harnesses

Sent from my Galaxy Note 4 via Tapatalk for Android

 

[01TX_Tahoe]

I haven't had any problems like that with mine. I've had all of mine on and got no interference. My 52" is grounded on the passenger side A pillar, the 24" is grounded just above the radiator in the front and my fogs are using the factory wiring. I don't even have relays in line with mine, they're wired to a constant 12v source so I can turn them on anytime.

 

[08grey]

I've grounded one bar directly on the battery itself, the rears on the same ground that my sub amp is on (cause its near the rear of the car and I only had so much length on the harness) and two bars on a bolt that some factory stuff is grounded on (on a bolt under the hood on the windshield side towards the center there is a bolt with something going to it) so, basically the issue exists no matter which ground I use so I'm guessing its what Chiggy is saying and I just have POS relays in the harnesses

Sent from my Galaxy Note 4 via Tapatalk for Android

Don't use shared ground. Isolate each ground to its individual light. If sound continues pull each one one by one untill you find the culprit.