How to hook up a preamp to a Integrated amp


Have a Sim Audio Moon p5 preamp i would like to try on a LSA Statement integrated as described in first paragraph in this link 
https://parttimeaudiophile.com/2011/10/25/rmaf-2011-eficion-exemplar-stillpoints-lsa/


128x128maplegrovemusic
After looking online, it appears there are different versions of the integrated amp. 1) Has no main amp input and using another preamp is not possible. 2) Has main amp input with toggle switch. 3) Has main amp input with jumpers to output. Which version do you have?

tsl49
Thanks for the info . Mine has no main in . Thought it seemed impossible from looking at mine . Shoot ! Just got the Int. a couple days ago and like but seems closed in compared to a Sim Audio p5 /krell ksa 100 combo .