Amazon.com: OSD Black 5.25" in-Ceiling Speaker w/ 1" Ceramic Coated Aluminum Dome Tweeter, Pair - BK-R53 : Electronics
Amazon.com: VOYZ High Performance Tweeters for Car Audio 1.6" 300 Watts Max Power Output - 4-8 ohm Super High Frequency Silk/Polymer Composite Dome Tweeter Kit (1 Pair) : Electronics