I have also seen older Onkyo and Pioneer CD changers that used exactly the same 6 disc magazine.

So, can you hook a Pioneer CD player, or other device to an Onkyo receiver or preamp, and control it with the Onkyo R1 remote control?

I have an Onkyo Preamp, Power Amp, and Tuner that use their "R1" remote system.

I had read somewhere that a particular Onkyo CD or DVD player was actual a certain model Pioneer packaged in a sturdier pkg, aluminum faceplate instead of plastic, etc. I have an old Pioneer CD player that belonged to one of my sons, looked, noticed the interconnect sockets on the rear for slaving units together were similar to Onkyo, too. Made me wonder if there is more in common between these two.

And I saw a good buy on a Pioneer 25 CD changer... so I was wondering if anyone had tried linking these two brands together.

I have found out the jumper cables are merely shielded wire with 3.5 mm aka 1/8" mono phone plugs on each end. So, I'll make some up, plug them in, and see what happens.

I had noticed that this Pioneer 6 disc magazine is identical to the Onkyo mags on some of their older CD players. That led me to thing that maybe they were actually the same under the skin. But I have found out that the mechanism was actually made by Phillips. The same mechanism and magazines are used by Pioneer, Onkyo, Phillips, Hitachi, Realistic/Optimus, and several other brands.

Will see what happens.

I hooked up an Onkyo Receiver and Pioneer CD changer. No dice, will not work from the Onkyo remote. Too bad... was hoping to get one of the larger Pioneer 25 or 50 CD changers to work with my Onkyo equipment.