How can I make my sider makers turn on when I turn on the parking lights so it will stay on and still signal when i signal?

 

You have to re-wire them to your parking/signal wires. However, in most states...it's illegal to have the sidemarkers on all the time. They can only be used for signaling, not have the lights on all the time.

 

Why would you want to make your car look like you put sidemarkers on, when it already has them? RICE....

 

What you propose would require running an extra wire to each side marker since only one hot lead goes there now. Also, you'd have to find dual filament bulbs that fit the side marker. Oh yeah, and then you'd have to remanufacture the side marker to have the correct contacts for the new dual filament bulb.

I agree with Keith, it's not worth the effort.