Hey, I like this thread, as it it tackles an issue that I had while getting my project off the ground. I personally thank all who have contributed to this thread.

@ Nastra622: As my tag states, I'm setting up my '07 Camry as a carputer, and am affectionately calling it the '07 MACry. Originally, reading certain threads got me thinking that I need an external DSP [Digital Sound Processor] or some sort of device for better sound. Based on replies I've received from everyone (from Apple technicians to audiophiles,) the line-out/headphone jack connected to amp via RCA cables should suffice.
But I love my sound.
So to you I say this: based on the info for the 3sixty, I say that you have all the connections necessary. It'll just go from the mini to the 3sixty, and I believe from the 3sixty to the Amp, or something like that. If you choose to use this method, then please let us know how it is working for you. If the sound is excellent, you'll inspire me to probably get one as well.

Again, thanks to all of you guys who commented on this thread. I can now move forward...