I have, for about 30 seconds.
I turned my truck on, and the lights on the amp lit up.
I turned the truck off to run upstairs and burn test tone CD's.
I come back downstairs and start my truck, and the lights came on, but it was smoking, and thats when i took it out and sent it in.
The repair guy said that the damage was most likely due to feeding it low voltage (no way that could have been me) or extreme vibration damage (again, couldnt be me).
The only exception i could think of is the shipper sent it poorly packaged (it arrived w/ 3 of the four mounting tabs bent), and something could have jarred.
either way, i recieved a junkup amp, which is f*cked up.
I did business for this amp almost a year ago (its been sitting on a shelf in m y closet), so im just gonna get the bastard fixed and eat the costs i guess. I PM'd the person i bought it from.