i had to clip off a couple wires that didnt really seem like they should be clipped(the ground wire) i got a wire harness for my 94 integra and it included a ground in it.
awesome price, awesome sound, not too hard to customize fairly nice looking. excellent sounds improvement over my stock head unit. made my cheap stock speakers sound like cheap 30 dollar speakers. they still pop on really low, but i cant blame the head...
none besides the "screen saver" but i just found out how to turn it off....it just looked weird. also i could see how it could be prettier