[Elecraft] ALC voltage input to the K2?

[Owen B. Mehegan]

I'm working on keying an external amp with my K2. I'm using this 
example circuit from the Elecraft site:

http://www.elecraft.com/Apps/Amp_keying_ckt.htm

The amp is a Tokyo Hy-Power HL-45B. In addition to closing the STBY 
and GND pins on its accessory jack to key the amp, it also has an ALC 
pin that it wants hooked up. The manual says:

"In order to keep the output within the maximum limit and to avoid 
signal distortion, ALC connection is most effective. Negative DC 
voltage of 0~8V max. will appear according to the amp output level. 
When this voltage (ALC voltage) is fed back to the radio, it works to 
have the radio’s output power suppressed according to the ALC voltage 
applied to the radio."

Is there any convenient place in the K2 where I could feed in this 
voltage to get the desired effect?

--
Owen B. Mehegan (owen at nerdnetworks.org)
"He is a dangerous mixture of sophistication and recklessness which 
makes one anxious about his influence on other boys."