I'm trying to do a Y cable as well, but my intention is a little different than yours. The Y "adapter" I'm going to make is just for switching the controller/carpc and audio source so that I can still listen/control the HD receiver while the carPC is NOT on.
Originally Posted by DaveDog
This is exactly what I'm doing. I have manual KVM switch laying around you know , but I better off getting some relays .
Originally Posted by JohnWPB
Do you think using just relays or manual switch to switch the controller (carPC and display controller) causing problem like "signal collisions"? I'm not interest in using carPC and the display controller at the same time, but either or.
Originally Posted by mitchjs
This is how the cable look like with wire-by-wire split/connect.
/ Female DIN to Display controller
Male DIN to reveiver -> Relay pack switch
\ Female DIN to CarPC (Mitch cable)