Yes you can, all it needs is a line in signal...... It all depends on the outputs on your board. 1/4" trs balanced or unbalanced, RCA phono or xlr balanced. If you have balanced outputs xlr on the board then I'd use that first.
3 pin XLR's are mono. 5 pin XLR's are special connectors usually used in stereo microphones, but usually split on the other end to two mono XLR's.
Between microphone and microphone preamplifier
To connect microphones to microphone preamplifiers
if the receiver unit of the wireless mic has a balanced output i.e XLR from receiver to XLR of mixer then yes. if on the other it just has a 1/4 inch jack output(unbalanced) then no.
Discounts for XLR cables can be found on Monoprice, Crutchfield, Musicians Friend, ShowMeCables, zZounds, Amazon, Mobile Beat, B&H Photo-Video-Audio, and All Express.
To connect an RCA cable to an XLR cable, you must solder links one and three from the XLR together, and connect those two wires to the end of the RCA component, along with the second wire. It is very useful to use a diagram to make sure you connect the correct cables.
There are speaker cables, unbalanced analog cables, balanced analog cables, coaxial digital audio cables and optical audio cables.
You solder ground to pin 1, hot/plus to pin 2, cold/minus to pin 3
XLR refers, not to the cable (wire) per se, but actually to the type of connector used. An XLR connector has 3-pins and is used primarily in audio. Professional microphones and other audio equipment use it. Of the three pins, two are for the balanced signal, and one is for the shield. The wire used then is a two conductor shielded cable using a braided wire or a foil shield. So, an "XLR cable" refers to a two conductor, shielded cable with XLR connectors on each end.
Search for XLR splitter
It's also called XLR. If it has pins, it's XLR male, if it has holes, it's XLR female.