rear single seat speaker, Riviera (wiring from rear body intermediate harness to speaker) Use when... see morerear single seat speaker, Riviera (wiring from rear body intermediate harness to speaker) Use when installing original, replacement, or aftermarket speaker. Made with correct connector for hook-up to current GM replacement speaker and correct connector for connection to original wiring, or cut off connector for hook-up to current GM replacement speaker and solder wires directly to original speaker (as was done originally) or aftermarket speaker.