Hey guys...I'm new to this forum and new to the pioneer "N" series units. I just picked up a few used units..and want to install one in my truck. At this point, I don't have an installation or users manual yet, but just posted in another forum here looking for them. In the meantime, can anyone help me with locating the wire on my truck for the speed sensor and what ever else that needs to be connected to get accurate speed, distance, etc. I've got a '99 K3500 (old body style), 7.4. If anyone can help me out, I'd really appreciate it. Thanks in advance.