I have a comcast dark grey remote and nothing is listed in the manuel for a home theater in a box code for sony.My old silver comcast remote with grey ok button works and there is a listing for home theater in box code in it's manuel but i use that remote for another tv.Anybody know the code for this dark grey remote?I tried the audio recever codes and they don't work

There is no built-in setup code that will work. See this thread for instructions on how to work around it.  www.remotecentral.com/cgi-bin/mboard/rc-sony/thread.cgi

if i use the older remote with grey ok/set up button which i know works the sony home theater do i lose anything instead of using newer remote?How do i set up new remote when i press aux button to control vol up vol down mute,and power on and off that's all i want to do with sony home theater but also be able to use tv function when i don't have sony system on

I did it it worked on my dark grey remote THANK YOU SO MUCH