radar detector

i have a radar detector that came with the standard cig adaptor.  but i want to hard wire the detector to the car so that when i turn the ignition, the detector comes on.  how should i go about wiring this?

It's an easy job, Radio Shack sells the connector to fit, take your old one as a guide. Solder the plug onto a long piece of 2 wire, 16 or 18 gauge will work just fine. My detector has a diagram right on it to show that the center of the plug is the +12. Most cars have a cig lighter that has no power when the ignition is off, this is the circuit that you want. You can check this by trying to heat up the lighter with the key off. If you have no places to tap into the accessory circuit, you can come right off of the wire to the cig lighter. Radar detectors draw very little current, you can tap into the acc circuit just about anywhere. I would suggest adding an inline fuse for protection. I have a Jeep Grand Cherokee and I put the detector above my mirror, tucked the wire under the headliner, removed the A Pillar post cover and put the wire behind there, dropped the wire down under the dash, and wired into the cig lighter under the dash. It sure is nice having it there when I need it and it looks like it belongs there. Maybe posting what kind of a vehicle would bring more detailed info on removing the A pillar cover ect. My Jeep just snapped in but yours may be different.