No, I never had either of those issues, mine were different.
I did bundle all of my unused RCA connections to gether and kept them seperated and pulled out of the way during initial install. I figured it might be a problem so I isolated them from the start.
I had issues with steering wheel controls not working and my Nav software not being found.
Ryan from Dabears helped with the Nav issue. Steering wheel controls weren't working and it was due to a bad connection on the SY8 interface box.