I suggest getting an external EQ for analog or a DAC for digital, the latter option being preferrable.
This is going to be the hardest to pull off, with any quality. Although if you're out for sound quality, why bother with radio at all?-AM/Fm Radio
This can be done. Depending on the system in your Titan, it might be easy. It might not be easy. Some research will be necessary, at the very least.-Keep My Integrated Steering wheel controls
Speakerphone is very possible. I don't know about playing music from your phone as an ecternal storage device, though.
Yeah, all the rest is pretty standard stuff for us, really. You should be able to get most of what you want from your system. I don't know how close it will be to the $1500 budget when you bring in specialized hardare and the like.
Figure with my setup (not complete yet), I've got nearly $2000 invested in my setup, but I also replaced my speakers, added amps and an EQ, etc. Nothing as high-end as your setup, but still. The PC itself was bought used/from eBay in pieces/parts, so I was able to get the whole PC part of it for well under $500.
But it's a good OS choice, as all the touchscreen-friendly frontends are designed for XP. And Vista is pointless int he car as of now...
Check this: http://www.mp3car.com/vbulletin/faq-...ath-seats.htmlPC can be mounted under passenger seat, lots of space there (Can see in linked post)
It's food for thought.
Welcome to our madness!