looking for app to prioritise audio inputs?

[IvanSanders]

Hi guys,

I've just purchased a new head unit for my 4wd, and I'm keen to route the UHF Audio into the head unit (easy bit), but I'm looking for an app which will prioritise the UHF over music (much like bluetooth phone connections) - so if there is no UHF chatter, music will play - and when there is UHF chatter coming in over the aux input, then music will quieten and UHF be broadcast.

Anyone aware of such a thing?

Cheers

Ivan