I have a old 17001 navigation unit made by fujits ten limited. The manufactured year is 2000. How can I find any information on this unit? Does anyone know of a site that carries pinouts? I am aware that some of the older toyota units required a external ECU. Did this model require the ECU. If so, is is just for Navigation or is for functionality of the cd deck as well? The unit looks very similar to the E7001 only with a navigation button on the lower left hand corner. I appologize for the annoying questions but appreciate any help. Mike Gettinger.