I'm having a difficult time finding a (correct) 'code' for an Onkyo TX-NR609
AV Reciever that can be used for a Universal Remote MX-450.

The issue(s) I'm having on the MX-450 are:
. Finding the 'correct' button for Zone-2 speakers
. Finding the 'correct' buttons for 'sub catagories' for the TX-NR609
Ex: Zone 2 speakers
Switching from Internet radio to 'regular' radio
. And 'other' button combo's that directly emulate the controller that came
with the Onkyo AV Reciever.

There are 'many' basic codes (+15) that will work with the MX-450 within the Onkyo catagory. HOWEVER, these codes only turn the TX-NR609 'on/off'.

Any advise given is Greatly Appreciated.

This is mainly for reference, but it may help you in any case. I don't have experience with the newer standalone URC remote other than reading a bit in instruction manuals and reviews.

In CCP (which obviously isn't for setting up an MX-450) the codes for that receiver are:

AUDIO
1336 (Main - remote RC803M)
1339 (Main2)
1340 (Main3)
1341 (Main4)
1342 (Main5)
1343 (Tuner)
1344 (Network)
1345 (Zone2)
1346 (Zone2 Network)
1349 (Dock)
1350 (Port)
1467 (Zone2 Tuner)

So URC has a lot of data for Onkyo receivers (those database references are used by a large number of Onkyo model numbers of course).

If there's absolutely no way to reference additional sets of codes from the MX-450's LCD or if those codes are simply not part of its internal database, then you're likely going to have to learn them, either from the original remote or from another remote that you can program from a PC with the correct codes (from URC's database or by manually inputting the codes as it's easy to get the Pronto-format HEX for them).

Appreciate the quick response.

The codes that were provided have 'pointed me in the right direction'.

Thanks 'TwistedMelon'.