Tunnie, contrary to what you have just, so vehemently, stated, I have just been out to the car and played my iPod through the Bose system using an iTrip. It works perfectly, but thanks for trying anyway. 
An iTrip is an FM transmitter as described in posts above so Tunnie was correct (but perhaps overforcefull) in his information........
"Can I use my MP3/gayPod player with my Bose system
The only options are:
Cassette Adapter (CCR800, CCRT700, CCR2006, CCRT2008 only)
FM Adapter (all headunits)
Omega headunits do not have a proper Aux in, only a lo-fi mono input just for phones. Unsuitable for hi-fi audio.
There are no 'bypass' units available suitable for Omega Bose, nor any CD Changer emulators. Given the age and that Omega Bose isn't that common (unique to Omega), its unlikely anyone will develop such devices."
http://en.wikipedia.org/wiki/ITrip
Thanks, H, I requested in my OP, "
Can I play the music on my iPhone through this system? If so, how please?", however even after reading the sticky, 'FM adapter' meant nothing to me. Fortunately my daughter is here for Christmas, and, subsequent to Tunnie's somewhat unhelpful answers suggesting that it could not be done, she suggested that I try her iTrip, and Bingo! It's worth pointing out that some of us old timers are not so
au fait with modern technology, so what may be obvious to some often passes us by.
