I have just fitted a Nokia CK-15W bluetooth phone kit, with remote display, a Brodit active cradle for my Nokia E65. I used a Plummer phone mount, and an Autoleads 06-913B. This connects at the amp. At the same time I fitted a Harmon Kardon Drive / Play for my iPod, connected using an antenna adaptor, and also a cassette adaptor - sounds awful, but it sounds pretty good, and seems to be the best option for an input into the head unit.
To keep the wiring as hidden as possible, I also fitted a second cigar lighter to power the active phone cradle.
As the 06-913B takes it's ignition sense from the cigar lighter, I extended the 06-913B to power the Drive / Play and the second power outlet.
Touch wood, it has all gone without any problems.
If anyone is undertaking anything similar, and wants any help, please just ask.
FYI the 06-913B mutes the stereo and uses the front speakers fopr the phone, however there is no facility that I am aware of that will actually display "Phone" on the screen, or mute the CD, etc.