https://www.campingworld.com/voyager...E&gclsrc=aw.ds
I looked and my controller doesn't have a name on it.
But
The thing in the link is what you need.
Since it's a Jensen brand, I'm unsure if your Jensen radio really has three inputs or if it has this controller.
If you have the thing in the link, you're set. If you don't, you'll need one.
Not neccasarily this one, but one that does what this one does.