I bought through Amazon an Audiovox Prestige remote starter with door unlock (my door remote went bad for my 97) and installed it myself in about 5 hours. It works great. It was easy to install and you can find through a Google seach the wiring color codes for the wires you need to connect to and where you might find the wire under the dash. I also used the inline, push-in wiresplices to make the connections. It did help that I'm an electrician by trade, but if you have some basic electrical knowledge, you could do the install easily.