Just a quick post to share another bit of hard won experience. Do you sometimes want to make temporary connections to the modular connector plugs and sensors that festoon the modern car? If so you've probably found it's not so easy. The pins and sockets in the connectors are often well shielded and difficult to access. Well I've found on my BMW that they conform to a standard size for electronic components and a trip to Maplin or similar outlet may be useful. What you're looking for are 0.1in crimp pins such as these and their female counterparts. With these you can attach to individual connections on the plugs and sockets.
