Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

vikram_d · 27th June 2007, 09:33

Hey folks,

My car system has started picking up a lot of cell phone static off late. This started happening after I upgraded my speakers and amps to GTO + Inifnity setup. How can I reduce this?

navin · 27th June 2007, 09:57

what sort of "static"? Now I am confused.

vikram_d · 27th June 2007, 09:59

It is the kind of sound old systems used to make when you were close to a cell phone tower. Dont know how to describe it better.

Vid6639 · 27th June 2007, 10:01

Quote:

Originally Posted by vikram_d

It is the kind of sound old systems used to make when you were close to a cell phone tower. Dont know how to describe it better.

Is it when the phone is about to ring? or some activity on the phone?

vikram_d · 27th June 2007, 10:07

Quote:

Originally Posted by vid6639

Is it when the phone is about to ring? or some activity on the phone?

Yes it is. It happens mostly when I'm about to receive a call or message. Also when switching towers I think.

navin · 27th June 2007, 10:12

Quote:

Originally Posted by vikram_d

It is the kind of sound old systems used to make when you were close to a cell phone tower. Dont know how to describe it better.

I assume this is only when the system is on. well the RCA wire is acting like an antenna and the amplifer is amplifying this signal. I have had this "tut-tut-tut" sound a few times. You are try sheilding your RCA wire with aluminum foil.

vikram_d · 27th June 2007, 10:14

Hmmm ok will try that and update you guys.

mainak · 27th June 2007, 10:15

Gurus of ICE

I currently have a blau amp driving my rear two speakers..also have blau front 4' spekaers in stock position of santro..
as usual the rear sounds extremely powerful than the front..
should i change my front to comps and connect the amps thr and drive the coaxials behind thru the HU?

Vid6639 · 27th June 2007, 10:17

Quote:

Originally Posted by navin

I assume this is only when the system is on. well the RCA wire is acting like an antenna and the amplifer is amplifying this signal. I have had this "tut-tut-tut" sound a few times. You are try sheilding your RCA wire with aluminum foil.

Yeah it starts with tut-tut-tut and gradually increases till you pick the call.

Navinji what other reason could it be. I have the problem on my lancer which has no amps. just 4 speakers and the OE kenwood HU. The radio antenna is the electronic retractable one.

But no problem in teh alto which has an amp/RCA's.

navin · 27th June 2007, 10:25

Quote:

Originally Posted by mainak

I currently have a blau amp driving my rear two speakers..also have blau front 4' spekaers in stock position of santro..should i change my front to comps and connect the amps thr and drive the coaxials behind thru the HU?

The stock locatiosn of the Sanrto are 4". Unless you are considering door mods you cant fit a larger speaker upfront. If you are considering modfying the door then you can fit a 5 or even 6" component in the front and use the amp to drive it.

navin · 27th June 2007, 10:27

Quote:

Originally Posted by vid6639

Yeah it starts with tut-tut-tut and gradually increases till you pick the call. But no problem in teh alto which has an amp/RCA's.

I had this issue with my Astra but when I covered the RCA in aluminum foil (m wife uses a lot in the kitchen) it stopped.

Try using the HU without the antenna connected and see if it helps you wont get FM but do you really use FM anwyay?

DerAlte · 27th June 2007, 10:29

Quote:

Originally Posted by vid6639

Yeah it starts with tut-tut-tut and gradually increases till you pick the call.

Navinji what other reason could it be. I have the problem on my lancer which has no amps. just 4 speakers and the OE kenwood HU. The radio antenna is the electronic retractable one.

But no problem in teh alto which has an amp/RCA's.

The problem is likely to be the shielding of the HU - maybe the chassis of the HU is not grounded properly. Normally the HU is 5-side shielded (RF-wise) with the removable front plate exposed. Usually there is a high-bit-rate serial link from the front plate to the main electronics, which may be susceptible to interference.
The RCA cables might not be the culprit as they would be further away from the cellphone than the HU.

Vid6639 · 27th June 2007, 10:31

Quote:

Originally Posted by navin

I had this issue with my Astra but when I covered the RCA in aluminum foil (m wife uses a lot in the kitchen) it stopped.

Try using the HU without the antenna connected and see if it helps you wont get FM but do you really use FM anwyay?

hehehe Only FM Navinji. It's a cassette player with a 10CD changer in the boot which has gone kaput. It's 7years old the OE system that came with the car.

My dad uses the car and it's only FM.

Funny thing is it happens with certain cell phones. For example with my phone no such problem but when my dad's phone rings it happens.

iraghava · 27th June 2007, 11:07

Quote:

Originally Posted by vid6639

Funny thing is it happens with certain cell phones. For example with my phone no such problem but when my dad's phone rings it happens.

Easy solution then. Buy your Dad a new phone

mainak · 27th June 2007, 11:19

Quote:

Originally Posted by navin

The stock locatiosn of the Sanrto are 4". Unless you are considering door mods you cant fit a larger speaker upfront. If you are considering modfying the door then you can fit a 5 or even 6" component in the front and use the amp to drive it.

what else can i do to increase the output from front, without going for door mods?

27th June 2007, 09:33	#6331
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,427 Thanked: 1,185 Times	Hey folks, My car system has started picking up a lot of cell phone static off late. This started happening after I upgraded my speakers and amps to GTO + Inifnity setup. How can I reduce this?
	() Thanks

27th June 2007, 09:57	#6332
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,199 Thanked: 9,307 Times	what sort of "static"? Now I am confused.
	() Thanks

27th June 2007, 09:59	#6333
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,427 Thanked: 1,185 Times	It is the kind of sound old systems used to make when you were close to a cell phone tower. Dont know how to describe it better.
	() Thanks

27th June 2007, 10:14	#6337
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,427 Thanked: 1,185 Times	Hmmm ok will try that and update you guys.
	() Thanks

27th June 2007, 10:15	#6338
mainak BHPian Join Date: Jun 2007 Location: Mumbai Posts: 90 Thanked: 0 Times	Gurus of ICE I currently have a blau amp driving my rear two speakers..also have blau front 4' spekaers in stock position of santro.. as usual the rear sounds extremely powerful than the front.. should i change my front to comps and connect the amps thr and drive the coaxials behind thru the HU?
	() Thanks