Should i install my 2 sets of speakers, amps, and one subwoofer myself?

You can do the mono or 2 channel amp yourself and the coaxial speakers, but the components are a little bit tougher if your car doesn't already have tweeters, if you want it to look good (otherwise you can just lay them or hang them somewhere. If you were to get anything installed professionally, get the 4 channel done. you have 2 options, running new speaker wire around the car to each speaker, or to run speaker wire up to the radio and connect the speaker wire to the car side of the wire harness (this takes less time). If you do it all yourself, get at least this thing called speedwire, its insulated and has all the speaker wires for a 4 channel amp and makes things also go quicker.