Aux 9 & 10 are not exposed on this plugin and so to use E-Throttle it is recommended to use Aux 1 & 2 (Boost Solenoid and ISC Solenoid) with an external E-Throttle controller.
Two Analog inputs are available on the expansion connector and so a 3rd will need to be re-purposed from the main header or the APS signals received over CAN.