it has VIDEO yet you only want to capture the audio?
I know that some engineers have used VHS tapes to record
only audio since they can fit 6 hours on one at slow speed.

there will be 3 RCA plugs...as mentioned the red is right
(channel audio) the white is left and the yellow is video.

you might as well put it on c.d. if possible since cassette
and VHS are both older forms of media. But perhaps you do
not have a c.d. burner?

As one web site i saw said--if you are having trouble with
recording this, ask any teenager....

good luck cap'n and let us know how you do on this!

(i have a stand-alone c.d. burner and dvd making equipment,
too if you need me to do anything on this.)

in the link below there is a device for sale for less than $70
that makes it possible to interface between audio devices and
your computer.

there are also many businesses these days doing these transfers.
i saw one ad yesterday for $12-15 to transfer VHS to DVD.

i did this with all the old 8mm family movies--now they are on VHS
which at the time seemed modern...but now i should transfer again
to digitize them to DVD.