Scart -> S-video + 2 phono cable question

[bh9872000]

I have recently bought two pairs of Kat5 transmitter/receivers.

one is setup:
s-video+2 phono to scart -> kat5
kat5 -> scart to fully wired scart

works a treat

the other one needs to be:
s-video+2 phono to scart -> kat5
kat5 -> scart to s-video+2phono

I have tried to setup this up but am getting no output.

I guess this is because the cables are wired directionally.
the s-video and audio cables must go to the input pins on the scart
plug.

my question is what is the easiest way to rectify this?

I am not really into DIY cables so an alternative remedy would be
preferred.

(I have just noticed that versions are available with s-video and
phono connections, would I be able to exchange them if I pay an
upgrade fee?)

Regards,
Bruce.