There isn't a single "radio fuse" universally assigned across all 1989 Dodge Ram Vans. The radio's fuse could be in either fuse box, and its location and amperage will vary depending on the specific options and radio installed in your van.
To find the radio fuse:
1. Consult your owner's manual: This is the best resource. It will have a fuse box diagram showing the location and amperage of each fuse. Look for a fuse labeled "Radio," "Audio," or something similar. If your owner's manual is unavailable, you can often find a digital version online through a Dodge parts website or a search engine.
2. Check both fuse boxes: Systematically examine each fuse in both boxes, looking for one that's blown (usually visually apparent as a broken filament). If you're not sure, you can use a test light or multimeter to check the fuse's continuity.
3. Look for a spare fuse: Most fuse boxes will contain a few spare fuses. If you find a blown fuse, try replacing it with a spare of the same amperage rating.
Important Note: If replacing the fuse doesn't restore power to the radio, the problem might lie elsewhere in the radio's wiring or with the radio itself. A qualified mechanic or car audio specialist may be needed to diagnose and repair the issue.
