What is the best way to disconnect the temp control cable from the button?

[Spartan]

I have took a few months away from the car to recharge the batteries after the holidays (only to find out the wife is pregnant with twins, there goes the extra car money, lol).  I finally got back to the car today and was going to remove the heater/temp control buttons on the dash and repaint/clean them up.  I disconnected everything pretty easy except the cable for the temp.  I am afraid of trying to remove the press on washer in fear I might break the plastic stud on temp button.  What is the best and safest way to remove the cable so I can do the work on it?

Thanks.

[Spartan]

never mind.  I used a needle nose and bent the washer back so it was loose enough to remove.  Looks like if I flatten it back out I can reuse it.

[Just 6T9 CHGR]

www.performancecargraphics.com sells a decal kit for the knobs

[Spartan]

Ya,  I was thinking the same thing.  I have to get the buttons off to get them all black again first