For the record, I installed front heated seats long ago and love them. I have heated mirror elements in my todo parts box I need to get around too installing that is part of my cold weather mods to go with installed webasto for trips up north. I intend to treat myself next year to central lock on my doors, as having to unlock each door with kids sux.
So basically, everything David mentioned except courtesy lights is on my list. I'll probably end up with his harness.
ISIL and al qaeda can go F*ck themselves...