badz....you won't regret your decision to go with the 4400. IMO it looks a lot cleaner than the 3400.
in other news: bluetooth steering wheel buttons work with the 4400! w00t!
the push to talk button doesn't work as a push to talk button, but the ASWC made it into an "ATT" button, which is perfect, since i never used push to talk anyway.
as it turns out, the only reason i couldn't get them to work the first time is because i was F'ing up the ASWC programming, by rushing through it.
on a sidenote, i have an extra Scosche dash kit (part # SU2027B), sealed in factory packaging, that i will sell to someone who needs it, as well as a 20 pin wiring harness. The harness doesn't have the wires needed for the steering wheel controls, but those can be added.