KICKER CS Series 5-1/4" 2-Way Car Speakers with Polypropylene Cones (Pair) Yellow/Black 46CSC54 - Best Buy
MB Quart Premium 5-1/4" 2-Way Car Speakers with Aerated Paper Cones (Pair) Black PK1-113 - Best Buy
Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64 - Walmart.com