Don't have nightmares.
It depends on if there's a proper AUX on the back. Generally a AUX input has a pair of RCA type connectors on them.
For my LG2 2001 model I had to buy a AUX adaptor box but my is a expression model. If you want to know the source I used for the box then let me know.
What do you want to connect to the AUX? I use mine with a Ipod and brought a
IPOD Dock Connector to RCA lead of
which works really well.