|There are directions on the Internet (and maybe here on Remote Central) showing how to make a cable.

Thanks a lot for your reply, hdtvluvr!
Do you happen to know WHERE I can find the directions on the cable?
I made my own cable with pin5-ground, pin2-tip, pin3-ring.
Flipping pin2 and pin3 results in the remotes not even showing any response at all (like blinking or the error code).