Hi There
Want I want is to be able to...
Listen to my car radio
When the GPS gives audible directions the car radio will mute Radio (and if possible 'play' the GPS message through it)
When a call comes thru on the UHF it will mute the car radio and, as above, play thru the car radio
BUT the GPS has to have preference over the UHF
The GPS (Nuvi 310) has bluetooth and an audi O/P socket - the UHF (GME TX6200) has an Audio O/P socket
Car Radio (original equip in '92 Toyota 4Runner) has bugger all on front panel - might have to replace it with a newer model, or do some internal mods
There is a gadget designed for motor biles which seems to do this, but at $$$$$$$$ it is out of the question
So, looking for ideas, leads to circuits etc
Cheers
David