comand with iphone and ipod adaptor

[Rob_T]

i have an iphone which i want to use in my car as an ipod... so i connect up to the ipod adaptor, but then i can't use it as a phone....if music is playing and the phone rings, the music cuts out but i can't pick up the call as the phone is in the glove compartment.

i haven't bought the cradle for the phone, but if i do, will i be able to use the iphone to play music.

anyone else have this really lame problem?

any suggestions?