Amazon.com: KICKER 43DSC6804 6"x8" DS Series Front and Rear Door Factory Speaker Replacement Kit with Speaker Harness for Ford F-150 1999-2014 : Electronics
Ford F150 Extended Cab Sub Box Ford F150 Extended Cab Subwoofer
Kicker 46CSC684 Compatible with Ford F250/F350 Extended Cab 97-99 Truck 6x8" 5x7" Coaxial Range Stereo Speakers and HA-725512 Factory Speaker Replacement Harness | KICKER-SPEAKER-UPGRADE-70
1999-2003 Ford F-150 JL Audio C1 Speaker Upgrade Package: F150-9903-C1SK
1999 F250 gets an Update — Twelve Volt Technologies
Kicker 6x8" Speaker Replacement Kit+4-Ch Amp For 1999-04 Ford F-250 /350/450/550
Amazon.com: HA-R68 Compatible with Ford F-250/350/450/550/650/750 1999-2004 Car Stereo Rhythm Series 5x7 6x8 Replacement 225W Speakers and HA-725600 Speaker Replacement Harnesss : Electronics
Dual 6.5" and Dual 3.5" (EB) Speaker Pods for 1999-2007 Ford Excursion - Custom Speaker Pods
Boss 5x7" Front+Rear Speaker Replacement Kit For 1999-04 Ford F250/350/450/550 - Walmart.com
SUB BOX W/Amp Rack 1999-2007 FORD F250 F350 SUPER DUTY CREW CAB - SSA STORE