Did you have to cut or remove your bracket that held your factory radio? I just installed an Eonon D5166U. I had the DSP system, but I'm doing away with all of that an installing 2 amps. The Eonon is just resting in the hole in the dash. I can't find a way to secure it in place...and it's driving me crazy. Everything I saw online said I'd have to cut or remove the bracket, so I cut it.