yeah, both of the shitty ones i put in came with the DIY manual. I didnt follow them, sometimes i dont think those people know what they are talking about either. "Find the purple starter soloniod wire, cut it and attempt to start your car with a key. If it doesnt crank, crimp them backtogether along with the blue wire from the remote start unit". ITS CALLED A MULTIMETER!!!!!!!!!! But yeah, ne shitty one was a boa made by dei that came from target, and the other was a shitty bulldog that came from wall-mart. Mine is an ultra-start made by AST, i had to order off the net. It had everything needed, minus the DIY guide. The best part was lock and unlock and trunk are all on one remote along with start and it looks just like my factory remote key fobs. Gotta love it.