I am missing some parts

Wal-Mart and Best Buy and Radio Shack sell RCA remotes.

On the off-chance try e-bay... I had a miss functioning remote control on a kenwood home theatre system, searched everywhere for a replacement, then tried e-bay.. Chanced on someone who had found a remote control of the same model after selling their system (I was amazed by the coincidence), worth trying.

You need to check the signal. If there is not signal present or the volume is low the sub will not turn on and goes in to sleep mode.

-david

Yes you can do mr.

If the system uses a remote control, you may need to adjust the subwoofer out signal setting or turn on the sub in a menu, and on many systems, you can only access those settings via a remote control (you should check the onkyo user manual on how to do it).

Now, this is just one suggestion, it may work, but then again, it may not.

These could also be connection problems or some internal trouble in the onkyo sub signal output section or in the subwoofer input section, but hopefuly, it's just a "turn on" or "signal level" setting in a menu.

Good luck

3rq8 (triarcuate)

You cannot use this system with one that does not have a Subwoofer or LFE (Low Frequency Effect) output. Unfortunately, this sub doesn't have a line-level (speaker wire) input. Sorry.

Try pressing the channel up button multiple times to see if you can help the remote find the code. If you push the channel up button enough times and "something happens" then immediately press the mute button to save the code. It worked for my Sylvania tele.

You cannot wire this system separately, since it is very difficult to separate the power cables from the others which carry the audio parts.if in any case , lets suppose, you could wire the dvd player separetely, you will have no audio since all the audio frequencies are transfered in this cable to the sub woofer and from there to the satellite speakers.
It would be useless to wire it even if we could as there would never be any audio, only video, no matter what disc you use as the only way the audio is comming is throught this system cable to the subwoofer. Actually its the worst idea to implement in a home cinema system, but well, this is old panasonic.. :)