Radio Wiring Adapter (Harness) for Subaru SVX If you've looked into replacing the SVX radio, you may have discovered that nobody makes a wiring harness that fits the SVX. Even worse, at least one of the harness manufacturers listed a part for the SVX in their catalog that does not fit! Up until now, the only solution was to "hard-wire" a new receiver into the SVX — either cutting off the 1994 Subaru SVX Wiring Harness - Main - Subaru Parts Deal SubaruPartsDeal offers the lowest prices for genuine 1994 Subaru SVX parts. Parts like Wiring Harness - Main are shipped directly from authorized Subaru dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options.