Features 1、Fitment: The audio cable adapter is perfect replacement for Alpine KCA‑121B Ai‑net Player 9887 105 117 9855, replacement for JVC KS‑U58 PD100 U57 U29. 2、Excellent Experience: The cable supports MP3 audio format as well as WMA, WAV and other high quality audio formats, providing you with great experience to enjoy music from your phone. 3、Easy Operation: Match your phone or tablet to bluetooth module, and choose Aux from your radio, then you can use your phone to play music through car speakers. 4、Premium Material: Made of premium ABS material, the audio cable adapter is wear resistant, durable and not easy to damage, with a long service life. 5、Plug And Play: Easy installation and simple operation, plug and play without complicated procedures, the audio cable adapter is more convenient to use. Specifications: Item Type: Audio Cable Adapter Material: ABS Product Color: As Pictures Shown Fitment: Replacement for Alpine Ai‑net Replacement for JVC KS-U58 PD100 U57 U29 KCA-121B interface cable dedicated for Ai-NET/RCA opening method: Such as the 2004 and 2003 parts factory after having for AI-Net interface hosts can install CDA-7894, CDA-7893, CDA-7809, CDA-9805, CDA-9807, CDA-9811, CDA-9812, CDA-9813, CDA- 9815, CDA-9827, CDA-9857,CDA-9830, CDA-9831, CDA-9833, CDA-9835, CDA-7998, CVA-1004, IVA-D300, IVA-D900, INA-N333 CDA-9805, CDA-9807 Auxiliary mode setting (V-Link): 1. Press and hold the "Power/Initialize" button for 3 seconds or more, 2. Press DN or up to select "AUX". 3. Press the play/pause button to operate in the "auxiliary input on" and "auxiliary input off" modes. 4. In this way, you can use the disc box interface as auxiliary input, and you can also use special cables to connect KCA-121B, KCA-420I to connect CDA-7894, CDA-7893, CDA-7809, CDA-9811, CDA-9813, CDA-9815, CDA-9827, etc. Host setting method: auxiliary mode setting (V-Link) 1. Press and hold the F/Set button for at least 3 seconds. 2. Press DN or up to select "AUX". 3. Press band in the "auxiliary input on" and "auxiliary input off" modes. Note: The original factory setting of the auxiliary input closed. In the AUX In ON setting, you can press the DN or UP button to set the AUX mode display, select the AUX mode display setting, and then press the TUNE button. When the multi function link is connected to the seat (KCA-410C), you can set two auxiliary mode displays. 4. Press the setting button to return to normal mode. 5. To adjust the volume function, first press the source button and select the AUX mode, and then make the necessary adjustments. Note: When using the multi function link connector (KCA-410C), two external input devices can be connected. Press the band key to select the host mode. After completing the above settings, you can enjoy your favorite music any way you want, but when the AUX function is set to on, your original disc box control function cannot be used. Play your music through your radio head unit (must have for AL-PINE for AI-NET CD changer input): Hear your music in much better quality then other for IOS music player connections. Easily installed in your car You can't connect a CD Changer to the head unit at the same time while this cable is connected. Control and display remain on the audio device, the for AL-PINE head unit will NOT control or display text. Package List 1 x Audio Cable Adapter