Hi guys. So basically I want a motorized touchscreen for my 04'.

I have the SSL package, and have been reading I should get the Mitah adapter when buying an aftermarket headunit. But my main question would be this-

What headunit(s) will fit my car that i can:

1. Run with the Mitah adapter. Is this universal with any headunit that has an RCA ouput?
2. Have TOTAL suboofer control with the headunit itself. I have read many threads where they buy the headunit, install the Mitah adapter, and then go to listen to music to find out that they have no control over the sub and thus produces no sound.
3. I have already checked Crutchfield. They have a very very limited selection on motorized touchscreens. Any other websites that offer a vehicle fitment guide? Or can I just go with a 2" single-din headunit and it will fit? (Since the 3 that are on Crutchfield are all 2")
4. Have great sound quality. I could care less about resolution, ergonomic buttons, etc. I am really striving for something with good sound quality.

Thanks in advance.