As far as I know the "easiest" way is a diverter plugged into one of the existing remotes that makes 2 remote connections. So you wind up with 3 connections.. For example hook up to the original you are using for "tilt" and hook the "tilt" connection back up to the solenoid energized port of the diverter and hook up the blade angle to the non energized port, and use your existing factory remote lever to operate both, depending on the position of the electrical switch to operate the solenoid of the diverter. This should be a simple install, just mount the diverter, runs some electrical wire, and some hoses and connections.
I believe Brian, one of our members sells a kit for this (see link below) if you are interested, or you could source it out yourself from
Surplus center.
valves