Deactivating horn chirp during lock/unlock...

Hi all! This is my first post on this site after going through and reading all the helpful info over the last few days. I'm already addicted to this site!!! I have a 2007 TRD sport double cab in speedway blue. I do a lot of hunting using my truck and need to shut off the horn chirp when I use the factory alarm lock/unlock button....can anyone help? Thanks.

 

turn the key from off to on (don't start), then back again (not sure if its all the off or back to Accessary) Then press your little red alarm button (to the left of the wheel).

Press in-depress x 3

it should toot meaning its been turned off.

Repeat to turn it back on.