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So over the past two days I have installed a new CD player, amp, and subwoofer in my car. Got everything hooked up last night and ran into a little problem-the parking lights stay on all of time time. I didn't mess with any of the lighting connections. I added a wiring harness to allow the stereo to connect, and ran two wires from the stereo, one to the amp, and one directly to the battery, as most installations require. What would be causing the parking lights to stay light at all times? and yes, i checked the switch , and the delay, and all of that. The lights simply do not turn off. What might be wrong??

If you pull the fuse for the lights, do the lights go out?

yes the lights do go out when i remove the fuse.

If you disconnect the stereo harness, do the lights go out?

willwren wrote:If you disconnect the stereo harness, do the lights go out?

THIS is the key. Presumably, if you disconnect the stereo harness, your lights will go out. From there you just have to consult a wiring schematic and see what you did. Generally the lights have a lifted (open) ground when they're off, and a connected ground when they're on, so you probably have a wire grounded that shouldn't be.