I have a 1993 chevy lumina that I want to put a Clarion radio in, the original was stolen along with the wiring harness, so I only have bare wires exposed, what parts do I need to purchase?

You can purchase a small package of crimp connectors for the electrical connections. If the wires are exposed, you can connect them using this following list of connections.
These are the CAR's wiring (not the radio unit)
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4′ x 6′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 6′ x 9′
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
Look on the owner's instructions for the radio, the wiring diagram should be there. If not you can visit the clarion website with the radio model number to get the color codes for the radio wiring..
Simply crimp each to the correct corresponding wire. You may have a few extra.. the antenna power, or the radio mute.. just cap the ends of these..
K