Guys, Check this out...it just came in my Cummins newsletter. Lots of good stuff for those that need want have to have everything.

http://www.roadrelay.cummins.com/

 

unless something has changed recently [last 6 months] with the RR4, it is not compatable with the 03-present cummins engine in the dodge...

 

The RoadRelay has been around for a long time, but it's not available for Dodge's implentation for the newer (3rd gen) trucks.

 

I saw that too. It sure looked cool but if it won't work on my truck, then I'll spend that money on something else.......

 

I have one of those in my tanker truck at work. Don't think they are compatable for our dodges.

 

I jus got one for free from my friend but it is not roadrelay 4 it is roadrelay but looks like older model I did not install it in my truck but it is easy to do and will work with any truck or car with OBD II system so 1996 and up you can get data supply from OBD II connector all you need is two wires all other wires r for memory and lights
It works same as ScanGauge jus more options