I started to design a “keyless” ignition for my jeep. The ignition switch is starting to go, and I thought it would be fun to rewire it to use toggle switches and a push button. The only thing is that ANYONE could start the jeep and take off. So after researching after market “keyless” ignitions, they all seem to be around the $400 range.
I believe that the new keyless systems use an active rfid system, which allows the wireless key to be with in feet of the vehicle and still work.
After shopping around, I found the parts to build my own set up. The only difference other than costing less than $40, it will use a passive rfid tag. passive rfid tags dont have batteries so they will never wear out, but they only work from about 5 or less inches from the sensor.
why not just run a new wire to the starter from a push buttong and power the push button off the battery (with a inline fuse) and still use the key? thats what i did in my yj.