Hi there! im obviously new here so i thought id say hi...and hit u guys with some questions

just got an 80 b3 and im wondering:
- is it possible to fit the red rear indicator lights from a b4 to a b3? same goes for the front clear ones..
- has any1 replaced the 4" front speakers with 6"? how did u do it??
mm..thats basically it so far, hope someone can help me out!
thanks,
maudi