need a little help with lights

ok i have break, head and marker lights, but no tale, dash or dome lights, also i dont have an idiot buzzer, i dont know if i should or not its new to me. are all of these things connected on one circuit??? and what can i do to get more power out of the 89 dx? im not sure on the moter (the last owner was a pig and the moter needs degreesed so bad you cant see the plate with the stamp and the int is in bad shape, but i can handle that on my own) just maby a computer/chip and cam...

Did you check all of the fuses?

yeah a couple are missing, but i dont have the door to know what amp they should be and if they are even needed ones