Got annoyoed about a wiring harness for my got bought 2 neither worked so i went old fashioned way cut the wires now my windows dont work key fob wont let the trunk open neither does the trunk button works under the dash

Step one: restore all wiring to the condition prior to cutting wires. Step two: contact a car audio specialist -- such has www.crutchfield.com -- and see if they can take you through the concern and find a resolution that makes sense. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops