Serious buzzing/noise problem, stops when HU is touched...

**Rover_Eli** · 06-05-2004, 11:34 AM

I am having quite a weird problem with buzzing, and that is that it only comes out of the right side speakers, and it stops if I just touch the metal on the HU with my finger. It will re-start randomly, usually when I hit a bump or something like that. There is no buzz when I am listening to a cd or the radio through the HU, it's just when I switch over to AUX to listen to the PC.

I am running all the power (inverter) down the left side of the car, and the RCA's go AUX in to the HU up the middle of the car, so I don't think that's it.

Any ideas on - 1. Why is it only the right channel buzzing, and 2. Why does it stop when I touch the HU?

I am assuming something is screwed up grounding-wise - maybe the HU? Any ideas?

**lgbr** · 06-05-2004, 05:03 PM

Does the buzzing occur when the engine is off?

**TruckinMP3** · 06-05-2004, 05:38 PM

Bad ground and some intermittant short circut.

Check your ground wires (read up if you need to) and look for any bad insulation on you speaker wires (or other wire)

**binary.h4x** · 06-05-2004, 06:08 PM

yeah, its probably a loose ground that gets knocked around whenever you hit a bump.

**Rover_Eli** · 06-07-2004, 05:55 PM

Thanks guys - I will check all the grounds - and no the buzzing doesn't happen when the engine is off, nor does it buzz when the inverter is switched off.

Thanks and I'll update when I find something out.

**Rover_Eli** · 06-30-2004, 03:22 PM

So I finally got a day off to pull out the HU. The culprit was a pinched RCA cable on a steel bracket (going to AUX-in). Apparently I wasn't so 'gentle' when I pushed the HU back in the first time, so it was shorting out randomly, hence the buzz.

Thanks much guys. Next up - molding the screen into the dash!

:-)