I have one of these,all ways had steerwheel configurationEX1,MARS,2001 LTD, all ko then i woke up & got hold of the 3pk, then menus are so easy to get to with out scrolling through all the setups untill you get where you want to be ,The 3pk with the big screen on back ,very well balenced, i still use the nicad that came with it a sanyo 9.6v 1600mah, 80 hrs use so far no problems,the direct call button on the back is so nice to have also fitted the drop down steering,very nice piece of kit
Got the hrs system by the way