I can't find any information about a "Aiwa AV-D58 Stereo Receiver" or a vehicle with that name. It seems like you're looking for a service manual for a stereo receiver, but the product name might be incorrect or incomplete.

A service manual for a stereo receiver, like the hypothetical "Aiwa AV-D58", would be a very valuable resource for anyone looking to repair or maintain their audio system. These manuals typically contain detailed schematics, diagrams, and instructions on how to disassemble, troubleshoot, and repair the receiver. They often include component specifications, wiring diagrams, and information on common issues and their solutions. Having access to a service manual can make a big difference for both professional technicians and DIY enthusiasts, allowing them to perform repairs and upgrades with greater confidence and accuracy.

If you can provide more information about the specific model of the Aiwa stereo receiver, I might be able to give you a better answer. Good luck in your search for the service manual!