No sound from stereo

[Chrisg]

Hi. I have a aftermarket stereo in my 98 z3.. was all working ok.. yesterday I had no sound.. stereo is working ok.. tried in another car and all works.. any idears ? Thanks

 

[Rudyrov]

Check fuses on the amplifier and the amplifier turn-on circuit.
The amplifier needs power, ground, and a turn-on usually 12V from the head unit.

 

[Chrisg]

Hi.. I have looked for the amp.. can't find it.. looked in boot and behind both front speakers. Thanks

 

[Rudyrov]

If you have the amplifier it's in the trunk (boot) on the right side behind the carpet bolted to the right rear wheel well.

 

[Chrisg]

Hi. Just removed all the carpet.. nothing in there

 

[Kenhayes247]

If its the basic non HK setup the amplifier is normally bolted to the back of the front left footwell speaker. It is possible that somebody may have removed the amplifier from there and connected the wires together that would have plugged into it.

 

[Chrisg]

I know the amplifier you are talking about. It's not there and wires look like they haven't be cut.. but still no sound from head unit.. I have tried a second head unit with no joy. Thanks

 

[Rudyrov]

Great point Ken.
So, now Chris needs to figure out if he has a working radio or what's going on.

 

[Rudyrov]

Chris, most radios with a digital display have 2 power sources, a constant and a switched source. The constant is always hot, the switched responds to the ignition key of the car. Here is a video that might help;

View: https://youtu.be/YgBIIFKONo8?si=wNLcqXstHs4fsseg

 

[Chrisg]

Just did that test. Everything as it should be.. I am still thinking amp.. but unable to find it.. would it be worth removing passenger seat and looking under the carpet ??

 

[Chrisg]

Am I right is saying there a site. Where I can enter my Vin number and it will tell my the build if my car ?

 

[Richard29]

The amp is small (if it has the same as mine) and bolted to the rear of the LHD Footwell speaker. I had to replace mine as it stopped working.

 

[Chrisg]

Hi. Not there

 

[Zephyr]

Am I right is saying there a site. Where I can enter my Vin number and it will tell my the build if my car ?

Try putting your full vin here

Free BMW VIN Decoder : ///M Decoder

BMW VIN decoder will check your BMW VIN and show you full vehicle specification

www.mdecoder.com

 

[Richard29]

Hi. Not there

Ah let us kniw when you find out more.

 

[Kenhayes247]

I assume you have pulled the entire wiring harness through the radio aperture and checked its all connected. I can't quite remember but 1 of the plugs is for speakers and the other power......just a thought.