its quite simple when you get all the parts you need, first is the mounting bracket, they come in various sizes for various trucks, get the one for yours and install it, your new stereo will slide right in, next is the factory to after market wiring harness, it plugs into the factory harness and will either plug directly into your new head unit or have wires you can splice onto the harness that was included with your new stereo. just grab pinouts for both harnesses and splice wires that match, ie SPKR LF+ to SPKR LF+, BATT+ to BATT+, ACCESORY+ to ACCESORY+, GND to GND, etc..