no i didn't have a high output alternator just ran stock one (never changed) and reg battery.....and yea was over 2 grand about 2500+ mis. parts took me and my boy 2 days and 14 hrs to install, literally took my car apart and custom fit everything with spacers cuz kept hittin the glass, tweeter holes, mounts, etc......had custom woofer put it in the front and rear (component speakers) front and back of my 2 dr teg lol, 2 amps, woofer, box, and cap ALL Alpine except for cap.......the digi cap i got from bestbuy my boy hooked me up it was like $200 but got it for like 50 somethin (crazy discount lol)

PS - the demmel tool does wonders for custom work