Don't, a car can sound good with 4 speakers that cost 10 bucks for all 4.
Open both doors and stand a foot away and see how the sound is then .
I had a Nissan Maxima with 8 Bose 901 speakers in it , sounded fantastic .
Open both doors and stand a foot away and see how the sound is then .
I had a Nissan Maxima with 8 Bose 901 speakers in it , sounded fantastic .