Hay All,

A friend of mine just bought a 73 coupe. This is a work in progress.
The 1st thing he can't figure out id how to stop the key buzzer...it just won't quit.
Any ideas?

take the key out. sorry that is the depth of my skills.

Does the buzzer stop if you shut the door?  If you take out the key does it stop with the door shut?  What I am getting at is the door switch working..do the interior lights stay on all the time??  or are the bulbs burned out or removed..

If it is not the door switch(s), it is most likely the switch in the column is suck/bent/damaged. Could possibly be a shorted wire in the column, also, but the contact switch is more likely. Getting to that switch requires removing the steering wheel, and turn signal switch.
The actual buzzer is behind the speedo-tach cluster, towards the top dash pad...easy place to get to...NOT!

Thanks Joel,
This Vette has tilt and telescoping steering wheel, where I can get the "Key In" Buzzer switch ?
Additional info is from the new owner.

I would guess the switch is just sticking..it's just a small piece of metal with an insulator on the end...I think it's brass..it's setup like that doctor game that you get a buzzer if you touch the sides when you take the guts out..old game I had when I was a kid..can't remember the name but..anyhow I am guessing that the part is ok just touching the sides..I haven't seen this part on the list of repair kits for the column online but it may be the same part used by GM for many years..I would do more diag before I went after that switch first..with tilt and tele it's a little work to get down to it..may be a wire inside the column anyhow..
Rich

Operation!

Like Rich says, the switch contacts may just be stuck. They are just two simple brass reeds that touch with the key in. I have one I can take a pick of, to give you an idea of what yer looking for. The pic above doesn't actually have the switch in it. If could also be the little tab on the key cylinder that is not retracting when you remove the key. An operation will be needed to get to the source, and being a T/T column will make it more challenging, but by no means impossible for the average feller.

Go to this site you should find any info you need for steering information

My 68 has a courtesy light switch in the door (hinge area) So when you open the door the cortesy  light comes on and if it is still open when you insert the key, the buzzer goes off. My ign switch is in the dash and not in the column. If you get a bad ground in the door courtesy switch the buzzer will go off  all the time.