Tic0

Whutsup people Merry Xmas...im pretty new to my car i just purchased it about 6 months ago its been pretty good to me. I havent added anything to the car except for tints..but I want to make a little bit of modifications and I would like some advise from the pros. First of all I want to change the lights to some blue lights which ones could i get? how much? and how easy is the install? Then i'd like to make my sound system a little bit crispier it comes with the bose factory system. What would I need to make the sound quality come out better would I need to purchase subs and/or amps? where? how much? and how easy is the install? Please advise guys. Once again Merry Xmas