Both one like this - Only US$20.58, 3.5mm Aux Audio MP3 Interface Adapter for Honda Accura Accord - Tomtop.com.
Installed it in empty socket at head unit. It would only fit in that socket any way. Now beside music I hear engine noise in speakers. Even alarm bip when engine is off.
Somebody must have same problems. Is it "ground loop noise isolator" way to go?
From web page of one "ground loop noise isolator" -

• Eliminating Buzzing Noise : Completely eliminating the buzzing noise, caused by ground loops which happens when the audio source and the speaker use the same power source) in some car speakers / home stereo systems when using the Bluetooth receiver."

Acura tl s 2003.

 

If you're going to spend more money on this project, you might as well use it to get a better Aux audio device that doesn't introduce electrical noise to your sound in the first place.

 

Thanks for answering. I would not mind to buy better device for up to 100$ if it would work for sure. To add I both "ground noise loop insulator" and it didn't work. Looking behind for such evidently tricky device I would be better to buy something from "best buy" so I can return if it do not work.

 

Did you not have buzz already? I only ask because TL's have a known issue with the whining.

 

Nop. Sound is fairly poor but didn't have buzz. Now problem is if is jack adapter poor or by design I can not use external cd changer port without ground loop.

 

Does the buzz increase and become more audible when you accelerate using the gas pedal?

 

You've got a bad ground somewhere. Chances are, it's the POS bad Chinese made product

 

Yup, more gas pedal I hear more engine noise in speakers. Plus when key in on position without starting car I can hear alarm bip in speakers. It all happen when I press CD button. Nothing of it happen if I press Tape, FM or AF button.

 

Yep bad ground. Sockr1 (David) just went through this very thing and was able to kill the whine by jumpering the audio signal shield wire directly to the radio chassis and to chassis ground. You should hit him up if you have any questions I'm sure he would be able help if needed, great guy.

 

Can you post link to his tread? My worry is if I will buy that 75$ jack adapter from BlitzSafe I will have exactly same problem as problem can be in head unit engineering not in Chinese cheap jack adapter that I have currently.

 

Here: https://acurazine.com/forums/3g-tl-a...nk-sub-955600/

 

I did some thinking. First it is nothing wrong with my jack adapter as it fit in many cars beside acura and no complain there. Second socket at head unit is for external disc changer and such device have his own power supply and ground for difference of ANY jack adapter. So problem is in engineering. I read some comment in another tread that external jack adapter at disc changer socket work in g3 but not in g2. Probably is way to avoid ground loop but way is unique and depend at engineering of head unit as I read.

 

This problem is solved. https://acurazine.com/forums/second-...ntment-950862/