Can anyone help? im after a decent CD/DVD head unit to replace the original one in my 172 but would like to retain the 6 disc changer under the seat and the satellite controls on the steering wheel if poss along with the display on the dash (dont want much lol!!) anyone any ideas of a particular unit that will do this? Im aware of car audio direct etc just looking for a specific head unit that will meet the criteria..........cheers all 