Stop horn honking after battery change

I put a new battery in my 2000 Tundra. Now the horn honks continually and will not start. I do not have a remote key.

I have searched the internet and tried a few things such as turning the key to the on position 5 times and pushing a red button to the left of steering column.

I would appreciate advice.

Thank you.

 

Did you mean stop instead of start or are you saying your truck don't start ?

Also, there is a fuse in the engine bay driver side junction block you could pull for your neighbors sake and then attempt to check the horn wiring for possible short to gnd if you have VOM.

 

What red button to the left of the steering column? Is it for an aftermarket alarm?
Try 'unlocking' the driver side door with your key after hooking up the battery, since you do not have the remote this should turn off the factory alarm and allow the truck to start.
If you have some sort of aftermarket alarm, per your red button comment...you may have to uninstall it completely

 

Thank you for all suggestions. Managed to get the horn stopped and engine started. After trying several things from the web such as unlocking the door rapidly five times... used the little red button by the steering column in a certain pattern. Worked like a charm. Think the button may be after market alarm as I purchased my Tundra used.