An aux input for my sharp XL-40 stereo
C
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PICTURES!¡!¡
INSTALL
LICENSE
Makefile
README
main.c

README

The principle of this hack is that I patch my aux signal to a free pin of the
main signal selection IC on the audio PCB and hook a AVR microcontroller between
this IC and the stereo's CPU which may then control the signal source selection
and select my aux input when requested by a switch added to the front.

ADDENDUM:
Unfortunately the ccb bus of this device is shared by multiple slaves, so main.c would have to be fixed to include address handling. I do not pursue this project further since I found a way to patch the aux signal into the line between the tone control IC and the output amp using the front headphone jack. Perhaps I will write down a bit about that somewhere.