inputs.text: viper 5902 excellent alarm - great functional alarm bought alarm wifes suv installed took many hours install im not pro ive installed handful alarms alarm doesnt come install instructions quick wiring guide tells colors wires inputsoutputs recommend getting installed pro unless youve installed least semicomplicated alarms great range lots possible add sensors really cool remotes tell sorts useful stuff dont like large oled primary remote surface area face remote isnt much bigger remote really thick quite bulky wife puts purse no biggie take car somewhere use secondary remote doesnt color oled screen secondary remote half thick smaller well actually pretty small fits great pocket without feeling like im carrying around tv remote kind exaggerating alarm really small status led built \\command center\\ antennavalet switch unit not best idea led located wherever antenna likely going center rear view mirror not good visibility led ended buying second dei led wiring parallel factory one splicing wires going \\command center\\ remote start works flawlessly suggest using tach wire instead virtual tach uses voltage readings although car successfully start using methods also get lot help installation decide self going the12voltcom forum people auto installs alarms stereos etc else say dei great brand makes respected alarms market ive dei alarms cars 7 cars installed majority never problems never car broken yet knock wood