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klalle / Melbus_CDCHGR_Emulator.ino
Last active June 5, 2021 22:10
AUX Hack on Volvo HU-xxxx
/* Melbus CDCHGR Emulator
* Program that emulates the MELBUS communication from a CD-changer (CD-CHGR) in a Volvo V70 (HU-xxxx) to enable AUX-input through the 8-pin DIN-contact.
* Tis setup is using an Arduino Nano 5v clone
*
* The HU enables the CD-CHGR in its source-menue after a successful initialization procedure is accomplished.
* The HU will remove the CD-CHGR everytime the car starts if it wont get an response from CD-CHGR (second init-procedure).
*
* Karl Hagström 2015-11-04
*
* This project went realy smooth thanks to these sources: