The ground wire can be mounted to anything metal. You can screw it right into the trunk if you want. Just be sure to check under the car first so you don't screw into the gas tank or anything else important.

If you use a certain procedure (described further down), you can gain access to Diagnostic Trouble Codes (DTCs) and many other digital readouts from the trip computer display built into the Cougar's gauge cluster. Items that are displayed include, but are not limited to: RPM, MPH, Battery Voltage, Engine Coolant Temp, DTCs, etc.

1. Hold Down "Units" & "Reset" buttons on the trip computer while the car is off.
2. Turn the car on ... The gauges will reset (pet out) and then return to normal.
3. Release the "Reset" button, THEN the "Units" button ... in that order or it may not work.
4. Push "Select" to go through various Diagnostic Modes, press "Units" to switch between Standard and Metric measuring units, and press "Reset" to return to normal mode (gauge needles will peg out again).

Any stereo shop will probably sell them. They go for about $16 from Best Buy and Circuit City.

Cycle the ignition from OFF to RUN 4 times within six seconds, then turn it back to OFF. The alarm light will stay on to confirm programming mode. Press any button on the first transmitter. Alarm light will flash to confirm transmitter programmed. Press any button on second transmitter. (Up to four transmitter total possible) Turn ignition to ON. Alarm light will turn off to confirm end of programming mode. If you car didn't come with remote keyless entry, then I don't know if this will work. If it did, but you just didn't get a transmitter, then it should work.