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Dimmer wire for HU, interferes with subwoofer?

By toofast4yourazz · Nov 21, 2008in General💬 7 posts👁️ 997 views
Posted Nov 21, 2008 · 18:57 UTC#1

Can the Dimmer wire for the avic-d3, interferes with the subwoofer?

 

because I get a loud amplified humming noise when i turn my headlights on with my amp and sub hooked up..

 

since the dimmer switch is activated when u turn headlights on, i was thinking it could be that.. any ideas?

 

BTW, even when i unplug the amp, i still get a semi low and quiet humming noise from the side stock speakers..

 

 

:shock:

Posted Nov 21, 2008 · 23:00 UTC#2

you might have an amp wiring issue. either bad rcas'. or a grounding issue. or you ran your power and rca's down the same side of the car. do you have h.i.d. headlights?

Posted Nov 24, 2008 · 01:47 UTC#3

why would hids affect it in any way? just wondering because hids do draw less current then the stock 55watts bulbs....hids draw 35watts

Posted Nov 24, 2008 · 11:12 UTC#4

ive seen hid's cause some odd problems in audio systems before. just a thought. saw a few that actually cut the radio reception when the headlights were turned on. dont know if they were poorly wired, or just crappy hid's. i didnt put them in

Posted Nov 24, 2008 · 14:48 UTC#5

If you do have hid's check their ground. They do use "only" 35 watts, but it is at a much higher voltage and that higher voltage can put out different frequency interference. The ballasts are step-up transformers and that could be the source of your noise.

 

ct_mike

Posted Nov 24, 2008 · 16:51 UTC#6

ok i fixed it, i took out the head unit, and found the culprit, a positive wire lost its cover and was exposed touching the dimmer wire, which was causing the noise.

 

thanks for the help

 

8)

Posted Nov 24, 2008 · 17:17 UTC#7
ok i fixed it, i took out the head unit, and found the culprit, a positive wire lost its cover and was exposed touching the dimmer wire, which was causing the noise.

 

thanks for the help

 

8)

 

So the dimmer wire was exposed too?