LED's are great!
I'm sorry to hear you're having issues with your led kits, not sure why they're not working for you. I have an '06 GoMango Daytona with lots of modded upgrades, one of the first thing I did was replace the factory exterior lights as they are typical and unappealing. I purchased the halo sets for the front, high intensity sidelights, smoked fogs, and leds for the rear and in under 1 hour with a friend I had all installed right from out of the box and with no issues or additional items required.
I would guess there is a wiring conflict somewhere? I am not an expert but my first thought would be a fuse popped or short in the wiring, etc. Question, if you were to but back the originals do they work?
K&N Typhoon Cold Air In-take, JBA High Flow Shorty Headers, Magnaflow mid-pipes with off-road CATS, Magnaflow Cat-Back Kit, Rotora Big Brakes Kit 13" Drilled & Slotted with 6 Piston (front) 4 Piston (Rear) Red Calipers, ST Suspension High Performance Yellow Coilovers, Mopar Rallye Black Rims, Rear Diffuser, Halo Projection Headlights & Rear LED Taillights!