Looking for a PDA car audio mute circuit

[Franklin]

Hi all,

I use my PDA (PPC) in my car with a GPS navigation system. At higher speeds and with music on, the instructions given through the PDA speaker can hardly be heard.

Now there are ready made systems, but they cost way too much. I'm sure it can be build for much less. So anyone with info on such a circuit or
other info is welcomed.

Take a look here for an example of what I mean, the PDA sound system:

http://www.qubit.dk/products.html

Thanks in advance.

 

[pape]

Is this for a stock radio or one using RCA's and amps?

 

[Franklin]

Thanks for your response. It's a stock radio, so no RCA's and amps.

 

[Franklin]

It seems like I turned to the wrong place for help/advise?