I bought the cab lights from Ford with wiring harness in 01 for around $75. I bought some clear lenses on Ebay for about $30 and bought the LED 194's at Autozone for $10 a pair. I bought 4 packs total of 8, put 2 in the front turn signal lenses, 5 in the cab lights, and used the one extra in the instrument cluster to flash the THEFT light, after a little modification, via my alarm. I installed the cab lights myself in about 2 hours.