there is a aux tattletale iv that has a switch on the bin loader auger, and a even better way is to adapt a set of full bin switches out of a R series into this citcuit.. Your combine should be prewired to plug in a TT IV module - its the one with the auto swing-oil level - oil temp stuff.
tbran - We figured you had your M.I.l. ride up on the cab roof and pound on it when the bin got full! You could still stop real quick every 30 seconds just to see if she's paying attention (and holding on!). You could call her Tattletale VI!