What is good practice for tapping into wires? For example, a wire going to the engine thermistor, or a 12V wire?
In the past I have used crimp bullet connectors. Cut the wire and crimp one or more wires in with the wire of interest, then attach the bullet connector and everything is working again.
Are there any other clean ways of tapping into wires? Sometimes the loom makes it difficult and wires are pulled pretty tight.