[mikedudley17]

do i answer this or do i not?

hell-here goes:

you cant lower an aveo 6-8 inches or you will be draggin ass. 1-1/12 inch drop is about as far as you will want to go. look for H&R springs online for the aveo. they are about 200$ and will give a nice ride.

you can install an aftermarket headunit but since you are asking this question i would suggest you go to a customs shop and have them do it.

as for rims and tires. the biggest you can go safely is 18s. id reccommend 17s and under with some 205/30/r17 tires. your best bet would be some 15s or 16s tho. and with the 17s and the smaller sidewall your tires will not actually be alot bigger than the overall size of the stocks so ur speedo changes will be minimal. besides as far as i know the speedos are off in the aveos by 7% anyways.

im not even gonna bother with the last question.