fitting A4 sline MFSW to an A3 sport..

[cusford]

hi there..

i have an audi a3 sport 2.0 tdi with built in cruise control and sat nav.

i have since upgraded to the RNS-E and got a multi functional steering wheel from an audi a4 sline,. the yellow connectors on the back are very similar.

thje one from the audi a4 is as follows...

15301

the one from the a3 is as follows...

3 - air bag
4 - air bag

7 - black horn
8 - brown horn

Rest are all blank!

do i have to rewire the connector?
does anyone have a wiring diagram for an audi a3?

ibeen sold i should have the module because i have the cruise control...? if so, how do i check i have this,.

thanks,
marcus :)