First time posting here or on any board for that matter so I apologize in advance for any breaches in etiquette.

I have an '04 XJR with just over 60k hard to very hard miles on it and have yet to have a single fault of any kind... love this machine! Thing is, I also have an Iphone 3g which is capable of all sorts of audio goodness and combining the two would make Jack a very happy boy, but try as I might I can't seem to find clear answers on the best way to do this for my model/year. All Jag will tell me is that they have a kit for $500 that adds an iphone connector but wont work with internet radio features, which is my primary goal.

All I really want is to be able to stream pandora from my Iphone over the car speakers with no loss in quality, phone/ui functionality would be great depending on the level of car surgery required but not really necessary.

Any help on the following questions would be great:

1 - Is there a way to get an aux input directly to the head unit or am I stuck with the cd-changer butcher method?

2 - Will I have to splice and solder or is there a plug that will do it less messily?

3 - The KCA 420-i seems like it might do the job but requires ai-net functionality rather than m-bus, how do I find out which I have?

4 - Is there any way the phone input in the center console could be used for this purpose?

5 - Is there a bluetooth solution that might simplify all of this without costing me $500?

And if that last one is possible, will the audio quality over bluetooth be worse than a direct connection?

Any advice is appreciated.