Not quite plug and play; the original speakers and their mounting bracket have to come out. I flattened out a small (2x2) piece of angle iron, and then cut it in half to act as the new bracket for one mount, the other side uses the orignal spot. You can see it on the left side. Also on the drivers side there was a tube like piece on the bottom of the grill, I cut it out, it looked like it was rubbing against the speaker. There was a previous thread that identified the + & - wires. Pink and green are neg/- on both sides the other two colors on both side are Pos/+. I clipped the factory end off, shrink wrapped the two wires together, crimped on the connector (had to modify) then shrink wrapped the crimp on connector. Took me about 1 hour, but I was slow, had to build the bracket, and took my time. The driver side wires are shorter than the passengers so a little tighter to work with, but over all pretty easy. And yes the sound quaility is much better, used to listen with the volume at 14-16 now 10 -12 but it is the quaility

here is the link to the previous thread good info

what an unbelievable difference! - kappa 3.5 dash speakers