Has everything you need...for the price u really can't beat it...have someone professionally install it because there are a lot of wires...don't let the installer tell you there's something missing because there isnt...mine has been very good so far...it lets me kno if someone is messing with my car and has alot of cool features... definitely a must for ANY car during the hot summer or cold winter. I definately recommend this product because it is awesome and I've never had problems with it.