Stereo/DVD: - Crackling sound

Slobbo · Mar 28th, 2018, 21:50

Hi all. I have the hu803 head unit with centre speaker and I get a crackling and popping noise when the Grom starts and also with some music but not all of the time. I think it might be related to the volume level of the iPhone. If the phone volume is cranked up it pops and carries on but if the volume is lower no problems.

I’ve just spent a fortune on new speakers thinking the speakers were blown.

Anyone else experiencing this?

reggit · Mar 29th, 2018, 07:43

Could you be overdriving the grom unit?

What happens if you turn the phone down, so it presents a lower signal to the grom and turn the car radio up to send a higher signal to the amplifier.

IJMOK · Mar 29th, 2018, 08:18

When I fitted a Grom to another V70 we had issues with where it was extremely quiet and would pop and crackle as the levels were so high to get it to work correctly.
I can’t remember for the life of me what we changed but it was some jumpers on the Grom unit that needed configuring correctly, I do remember we contacted Grom and they posted us some jumpers and instructions on where/how to fit them.

Might be worth contacting them, they were very accommodating and knew what the issue was quickly
Rob

Mar 28th, 2018, 21:50	#1
Slobbo New Member Last Online: Mar 28th, 2018 21:50 Join Date: Feb 2018 Location: Gowkhall	Crackling sound Hi all. I have the hu803 head unit with centre speaker and I get a crackling and popping noise when the Grom starts and also with some music but not all of the time. I think it might be related to the volume level of the iPhone. If the phone volume is cranked up it pops and carries on but if the volume is lower no problems. I’ve just spent a fortune on new speakers thinking the speakers were blown. Anyone else experiencing this? __________________ Cheers Rob Anyone near me needing codes read or reset pm me. I have an Autel unit which can do adaptions etc. No software updates however sorry.

Mar 29th, 2018, 07:43	#2
reggit Premier Member Last Online: Yesterday 21:45 Join Date: Feb 2012 Location: Preston	Could you be overdriving the grom unit? What happens if you turn the phone down, so it presents a lower signal to the grom and turn the car radio up to send a higher signal to the amplifier. __________________ 2009 Volvo V70 D5 (Polestar 225bhp) r-design 180,000 miles

Mar 29th, 2018, 08:18	#3
IJMOK Junior Member Last Online: Oct 26th, 2021 17:50 Join Date: May 2012 Location: Cheltenham View Photos By: IJMOK	When I fitted a Grom to another V70 we had issues with where it was extremely quiet and would pop and crackle as the levels were so high to get it to work correctly. I can’t remember for the life of me what we changed but it was some jumpers on the Grom unit that needed configuring correctly, I do remember we contacted Grom and they posted us some jumpers and instructions on where/how to fit them. Might be worth contacting them, they were very accommodating and knew what the issue was quickly Rob

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