Have to make an adjustment on my original Positive posting. I finally got around to trying to install the Sapphire I purchased. Wouldn't light up when power applied,checked power source and a few other things. Finally got fed up fighting with it and took it in to a Whelen dealer. Only to be shown the internals and it was pooched.The motherboard inside was FUBAR. Have tried contacting TactMedic numerous times even while other members were having issues with him to no avail.I ended up spending waaay more than I wanted to but bought a brand new one right out of the box. Hooked up, programmed and operational in under a hour. Take this for what you think it's worth but I wouldn't deal with him again. Too late for anything for Paypal to step in and do anything. Just left a bad taste in my mouth and big hole in my bank account.