You don't have to i was just wondering. I got a Alpine deck Kenwood 3-way 6 1/2 in the front with the stock tweeters, Pioneer 3-way 6x9 in the rear with a Kenwood 600 watt 4-ch, a Kenwood 1000 watt 2-ch bridged with 2 12" Kenwood subwoofers, a 2 farad Sound Quest capacitor, The Big 3 upgrade wiring to stop dimming headlights and IP lights.