Amazon.com: BOSS Audio Systems P45.4C Phantom Series 4 Inch Car Stereo Door Speakers - 250 Watts (Pair), 4 Way, Full Range, Tweeters, Coaxial, Sold in Pairs, Hook Up to Amplifier : Electronics
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Amazon.com: JBL GX302 3-1/2 Inch 75 Watt Two-Way Car Audio Loudspeaker System (Pair) - Black : Electronics
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Amazon.com: Blaupunkt 6 x 9-Inch 450W 4-Way Coaxial Car Audio Speaker, Set of 2 : Electronics
Amazon.com: Facmogu 2PCS 6.5 Inch Audiophile Full Range Speakers, RMS 30W MAX 50W 4 Ohm, HiFi Full Range Car Audio Speaker Drivers, Wideband Stereo Audio Loudspeaker Replacement - Yellow : Electronics