Could someone please tell me where to locate the low side connection to put my own refrigerant in? The nearest dealer is 90 miles away and I hate to pay some guy in a local garage to do something I could do alot cheaper. Thanks.

 

Trace the pipe going from the compressor to the evaporator coil (towards the interior of the car).
It is actually bringing fluid back from the coil to the compressor. This is the low pressure line.
There should be be a valve with a plastic cover for adding refrigerant.
Shan.