1999 suburban keyless remote

[terrye]

The following was on this site as the instructions for my subburban.:
"Welcome to AF

Here are the instructions.


Transmitter Programming Base
If they key is in the ON position during the programming procedure, the horn chirp will be disabled, if the key is in the OFF position, the horn chirp will be enabled. The horn will chirp when the lock button is pressed two times.

When reprogramming the remote control door lock reciever, All transmitters must be programmed at this time in order for the transmitters to operate the vehicle. Transmitters not programed at this time will not work and the procedure will have to be redone with all the transmitters.

Ground pin 4 to pin 8 of the data link connector (DLC). The receiver will respond by locking and unlocking the doors, and activating the liftgate window release (if equipped) within 2 seconds.
Press and hold the LOCK and UNLOCK buttons simultaneously on the first transmitter to be programmed until the locks cycle (approximately 10 seconds).
Repeat step 2 for up to four total transmitters to be programmed (if available). The receiver will respond by locking and unlocking the doors and activating the liftgate window release (if equipped) within 2 seconds.
Remove the ground applied to the DLC.
Lock and unlock the doors in order to verify the transmitter operation.
Activate the rear window release in order to verify the transmitter operation. "

All went well except the chirp on activating and unactivating the keyless does not work. I still get the chirp. My owner manual has positions for
Accessory
Lock
Off
Run
Start

I have tried all even with the car running. Still I have a chirp. I have lived with the Chirp for a year but I park it by my neighbor's window and he is undergoing ChemoTherapy and I really need to get it to stop.
Thanks in advance.