Where is the radio suppression relay on a 1990 Volvo 740 gl?

The radio suppression relay on a 1990 Volvo 740 GL is typically located in the engine compartment, mounted on the passenger side near the firewall. It is often found in a relay box along with other relays. To access it, you may need to remove the cover of the relay box. If you're having trouble locating it, consulting a service manual for your specific model can provide detailed diagrams and information.