How to add a 12V trigger circuit to Sonodyne SPA202 Power amp

[ashishkesarwani]

I would like to know whether is it possible to add the 12V trigger circuit to the existing power amp of mine i.e sonodyne's SPA 202 for it to fully integrate within the home theatre setup.
Also is there anyone in and around delhi who could do this?
Any help in this regard would be highly appreciated.
Thanks

Link to the sonodyne Power amp: for specifications
Home Audio > Sonus Series