CT21PN01 discontinued no longer available
Pioneer 12 Pin - ISO. Compatible with DEH-405 SDK, DEH-505 SDK, DEH-605 RDS, DEH-605 RDSW, KEH-2600, KEH-2600 SDK, KEH-3600, KEH-3600 SDK, KEH-P-4000, KEH-P-4000 SDK, KEH-P-5000, KEH-P-5000 SDK
Pioneer 12 Pin - ISO. Compatible with DEH-405 SDK, DEH-505 SDK, DEH-605 RDS, DEH-605 RDSW, KEH-2600, KEH-2600 SDK, KEH-3600, KEH-3600 SDK, KEH-P-4000, KEH-P-4000 SDK, KEH-P-5000, KEH-P-5000 SDK