You need to be good at wiring...compare prices with dealers like circuit city etc.....keyless entry is not to bad just wire it to door lock wiring. Remote start depending on type is a little more involved and does your car have magic key? This is a key that is coded...that you may have to leave in ignition..for starting even with remote. If you can find all of the start and power sources under hood great....... if not you may need to go under dash...tight spot..... I f you buy one from ebay make sure it comes with all directions and explaination....and ask questions... These can be a nightmare or some are quite easy if directions and hookups are clear...