technical diversions

a place to document my current project of connecting an iPod to a Saab 9-3 convertible with the factory audio system.

Sunday, January 30, 2005


doing some final tests today i discovered :-( that the pin 21 remains at 2.25V if the iPod is powered externally. This is really bad news because i con not use it the way i intended to control de radio.

At this point i have two options, use pin 21, or install a switch. I will check with my pillow and hope to have a decision tomorrow.

switchpin 21
good iPod can be docked and still use the radio
iPod can be used with headphones
more generic solution
no switch
bad manual control have to disconnect to listen to the radio/CD

It looks like the switch is the winner! the switch being more generic will also let me put an extra AUX input that i can use for a scanner or other device!


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