Originally Posted by master_wrench
You can run both trim units thru the one switch. You will however need a diode kit for the trim wires. These will stop backfeed thru the wires when you want to trim the units individually. If not they all will trim no matter what trim button you press. The diodes keep everything in order. Gaffrig should have these kits. When you order them make sure you get minimum of 4. One for each up and down wire if its a twin engine boat.
So you're saying that the switches on the motors will trim both motors also.