can anybody tell me where the factory horn is located on a XJ? its a '99. thanks

 

Also... any point me to the belt tensioner? its not in my haynes manual

 

Dual horns, behind the front turn signals. I pulled the grill and lights off of mine to get to them. As far as the tensioner, I believe it is under the power steering pump. There is a nut on the power steering pump bracket that appears to have threaded rod in it. That is the tensioner. Either tighten or loosen that nut to tighten or loosen belt

 

thanks!