hi sifus sekalian, ive had this annoying issue on my car stock sound system, ori proton hu front & rear speakers

there is a hissing noise whenever the HU is turned on, either one tuner mode, AUX or usb mode, bass @ +6 and treble @ +5, i tried lowering down the treble and the hissing sound slightly softer but still noticable..

anyone has experiencing this issue ya? wiring issue? speaker kong?

i would like to roughly know whats the issue bfore goin to rectify it haha..

thanks!

Things like loose wiring, or grounding can cause hising problem. When did you actually had this problem? Since bought the car or when suddenly you changed something like a new HU or car alarm or changed a defective door switch?

not too long ago, didnt change anything but recently had some prob with the door switch where both front left and right door switch wouldnt "pop" out when door is open

probably related to that? lol...

Yes.Some would have triggered it.Make sure always use original door switch and the wiring connection is done properly.