Sajme

Ok, thank you djspawn00.

No, actually, looks like (BUS+/BUS-) Pionee's oem signaling that transfers data between devices (CD changer, AMP). What I have done, is I have connected power and audio wires to the aftermarket radio and only power and this BUS to the factory radio and only if I turn on the factory radio the audio comes out. Seems strange but this is happening in my car. Thanks, Sajme

Hi everybody, I am trying to install an aftermarket radio on my GS300 of '99. It is one of those combos with DVD/TV and 7" display. I managed to connect all power and audio wires but there is no sound. I know there is a CD changer and an amplifier in the middle and what I found is that the amplifier is not activated if it doesn't get signal from a couple of wires titled (BUS+/BUS-). If I connect this wires to the factory radio I can get the sound out of the amplifier. Does anybody know how to activate the stock amplifier without the factory radio or there is no way to do it and I will need to replace the stock amp too? Saimir