I ordered a DSP5 switch from So Cal late, and I mean late Thursday night when i got home from work. It showed up this morning at my door. I don't get to buy a whole of stuff for my truck so when I do buy stuff, I get pretty darn excited. I'm very leary of ordering stuff on the internet but figured i'd give it a go for the switch. I was very impressed at the service I was given even though I never talked to Guy or anyone at So Cal Diesel. It was shipped Friday morning and I recieved at confrimation e-mail from Fed Ex. Just wanted to share my experience of one of the vendors here. All I gotta do is get it installed and load the tunes in it. Thanks Guy!!!