With the optional microphone (CX-303), the DEH-P01 can measure speaker distances automatically.
: Some versions or adapters may require a default PIN code of for pairing. pioneer deh-p01 manual
The manual walks you through a hidden button sequence to switch modes. One wrong press, and your tweeters are getting full-range bass. With the optional microphone (CX-303), the DEH-P01 can