There are several universal remote options available that claim to work with Kenwood receivers, including the VR-505. However, as you mentioned, some Kenwood receivers may use higher frequencies than standard universal remotes, so it's important to ensure that the remote you choose is compatible.

One option is the Logitech Harmony Elite universal remote. This remote has a large database of devices and is compatible with over 270,000 different devices, including the Kenwood VR-505. The Harmony Elite also has the ability to control up to 15 devices, including smart home devices, and can be programmed using a mobile app.

Another option is the Inteset 4-in-1 universal remote. This remote has the ability to learn commands from other remotes, making it a versatile option for controlling multiple devices. The Inteset remote also has a macro programming feature, allowing you to program a sequence of commands to be executed with a single button press.

It's important to note that compatibility can vary depending on the specific model and age of the Kenwood receiver. So, it's always a good idea to double-check with the manufacturer or do some research to ensure that the remote you choose is compatible with your specific receiver.

I hope this helps!