I am new to the forum and was doing some pre-purchase research. I am buying a 2011 sonata this week and was checking out the forum for advice or issues.
I can post the wiring diagram tomorrow for you if no one has posted it before then. I own a av and computer business and do car audio on the side. I have been looking into putting some new items in the car post purchase so I have a little research already done.
A: 6.5 all around ( component in the front)
B: dash kit is available but squishes the ac behind the shifter on a lot of them
Metra is working on one and I personally would wait for theirs
C: most aftermarket head units that use sat radio will NOT plug and play w/ the factory antenna. (not sure about splicing yet)
D: Factory MIC is the same way (no promises about plug and play)
E: Wiring harness is available already form Metra if your going to go ahead and replace factory head unit.
The one thing i dont think is listed in my info at the office is if the factory NAV antenna is built into the "fin" or if it a separate piece somewhere else. I would like to know so i can research tapping into it or rerunning something aftermarket that could be hidden. I do not want a aftermarket "nub" hanging out on my new car roof or trunk lid..