- CD in header and - AUX in header

Question

Hi,
and thank you a lot for answer.
I have another question for youis about the connection cd-Rw and DVD-Rw to motherboard (audio connection), it is necesarry to conect this cable to moatherboard or not? I cav DVD-RW and another one CD-RW, i already conected the DVD to CD in header and the CD to AUX in header.
Thank you again for help!!!
Florin.