Has anyone got sound in rear speakers?

[morsify]

Can anyone please confirm if it is possible to hear sounds (i.e. cars) behind you, if you have a 5.1 or 7.1 speaker system?
I have 2 x front, 2 x rear, front center, and a subwoofer - this was not bought as a proper 5.1 set, but just a bunch of speakers I cobbled together. In Codemasters F1 2012, I can definitely hear cars behind me in my two rear speakers, but this does not happen in GSC or rFactor. I would love to know if it is possible to get them working in GSC, or if buying a proper surround sound set would make any difference?
Thanks

 

[Sicario Del Toro]

Just to confirm the answer is ---(YES) 5.1 logitech

 

[morsify]

Just to confirm the answer is ---(YES) 5.1 logitech

Thanks Joe, can you tell me, with the 5.1 set how many jack plugs are there?

 

[StrongManBR]

Rfactor 1 and GSC are only 2.1 channel.
Sorry.
Can you try DDP(Dolby Digital Plus)/DDL(Dolby Digital Live) options on HT or sound programs like Creative SB. This will "fill" all channels.

 

[morsify]

Rfactor 1 and GSC are only 2.1 channel.
Sorry.
Can you try DDP(Dolby Digital Plus)/DDL(Dolby Digital Live) options on HT or sound programs like Creative SB. This will "fill" all channels.

Thanks StrongManBR, that does help explain this. I have managed to fill the speakers, by changing some of the effects options, so it is much improved thanks.