I performed this installation in my 2004 Jeep TJ in 4 hours start to finish. This included online research at bulldogsecurities.com for the vehicle specific wiring colors. My jeep was a bit easier than some cars and trucks since it doesn't have power or remote door locks or a security system. All I wanted was a remote start system (that's why I chose the simplest remote starter Bulldog offers). The installation manual is a bit overwritten leaning to a beginner but the kit is complete with everything you will need except for a screwdriver and a roll of double face tape to mount the box. It even includes a razor knife and a test light (I never used either one). It worked as advertised and was easy to program. I recommend anyone interested in buying one of these to visit the manufactures website and view the installation video and vehicle specific info prior. This is not an installation for everyone, and the video will allow you to decide if you want to tackle this yourself or have a professional install it for you.