[amsat-bb] 1200 mhz amp PTT

I purchased a kj6ko amp and I'm trying to key it with my 910. I can simply run a ground from the PTT terminal when I want to tx. This isn't recommended but does work. The 910 doesn't have a single purpose amp control connector. Does anyone have an amp working with one of the existing ports on the 910. I don't need T/R switching as I'm just using 1200 mhz for tx only. The TX PTT control on the amp is rated around 7ma and 30v.

73 Jeff kb2m