Radio not working

You would need to remove the radio and check for power at connector pins A1 and A2. If you do have power then the radio is done. To replace the radio you would also need to download software for it to work properly since the radio is a control module also known as a AUM (Audio Unit Module) You can install an aftermarket radio in your vehicle but I would recommend you have software downloaded first to remove the AUM out of the network so that there is no conflict in the networking system of the vehicle. Once the software removes the AUM you can have a profesional audio store install a different radio. You can do it yourself also. If you look online I am sure you could find a wiring kit that you can wire to the aftermarket radio so that you can just plug the new radio to the Volvo radio connectors. So compare prices to see what would be more economical for you to replace? Good luck to you.

I forgot to ask as well, does your vehicle have premium sound? If it does then it can be a little more tricky to diagnose since you will have an external ampifier. If it does then I would recommend Volvo diagnose it since you could have some other issue?

The software would need to be done at the dealership. If you get a used one I do not now if it would work properly or not since when you download the software for a control unit it will configure that unit to that vehicle? Once software is downloaded to that unit you can not take that software back. The software to remove the AUM to make room for an aftermarket radio would only let the vehicle now that the AUM is no longer there so that it will not post fault codes or cause any type of disturbance with the other control units in that network? So I would say you have a 50/50 chance a used AUM will work properly? I just wrecked my 2001 S80 and would have gladly removed my AUM and sent it out to you but I think my car is already at the wrecking yard? And I dont know if the insurance company would let me remove any parts out of it since they will be salvaging it?

The radio itself does not have fuses because like I mentioned earlier, the radio is a control module. As for the fog lights, did the vehicle come with fog lights? Or is this something you are trying to add?

Well the switch is plug and play but the reason it is not working is because the vehicle was not configured that way? So you may need some software downloaded to reconfigure the lighting and install relays and fuses to make this work? If you have a fax number I can send you the procedure to install the fog lights and where the fuses and relay will go but you would still need to take it in for the software?

Nice work JIS001, he is one of our best!

Great addition to this thread!

Cheers, Ken

You should take it in to Volvo to have any fault codes scanned and fault traced.

Hello,

There are tow parts to that radio that could be causing the problem, first the radio head itself or the radio module under the drivers seat. Here is a wiring diagram and a guide so you can do some testing.

https://www.2carpros.com/articles/how-to-check-wiring

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken