I updated my old post about connecting a phone via bluetooth to a Renault Espace
I posted this about 5 years ago and no longer have the Espace (I now have a Citroen C4 Grand Picasso), but I noticed the old post still gets views. Unfortunately, the parts I used at the time are no longer available, so I updated the links.
I was also a little (but not very) surprised to find that PC CDROM to soundcard audio cables are tricky to find these days. I guess you’ll just have to scour ebay or raid an old PC.