Interesting thread. I have a Kenwood VR-507 that actually still continues to work well to this day. The RC-R0720 remote on the other hand is unusable.
Technically it works fine - but the plastic front, back, between the buttons - everywhere has become very sticky/tacky and it not very appealing to use.
the remote has been either in a drawer, box, or sitting out for years but not used (universal remote controlling the AV and others instead of the R0720).

But now the other universal remote is gone and I wanted to use this.
Any idea if it can be cleaned? I have tried spot cleaning different parts of it with various solutions to no avail.

I have older Kenwood remotes, RC-P7730 and RC-6040 are ion front of me currently.... any idea how well if at all they could control the VR-507?