WOW... :shock: ...This is a great site.I have a question regarding a multiplex circuit I am trying to figure out.The circuit is from my 2004 dodge Ram where there are steering wheel controls that control assorted functions of the stereo.There is a single wire that I have found at the back of the radio where I see (what I believe to be) the multiplex wire with my fluke meter.I haven't tried a silly scope meter yet.I havent played with multiplex circuits to much so I am not sure where to start.Will a scope give me a baseline as to what type of multiplex circuit it is?How do I "tap" into it so I can get a solid voltage with two particular buttons?Is there a website on the subject where I can get the basics down for multiplex?I am sure I can go right to the switch for a solid voltage,but I like to do things the hard way,and furthermore have always wanted to figure out multiplex circuits.The car manufacturers are going the way of multiplex to save wire,so it will be nice to know.......Thank you for the help...... :?