Help connecting my AMPS to my ML Sequel II's

Hi folks,

So I have inherited my dad's old system however it's been unhooked for awhile so I really don't know where to start with it.  All I know is everything was working fine until my mother decided to unhook it all after my dad passed.

2 x Martin Logan Sequel II's
NAD 2240PE Power Envelop Amp
Acoustic Research A-03 Amp
Adcom GFP-555 Preamp
Adcom Ace-515 AC Enhancer

I also have a turntable, tape deck, cd player however I know those all plug into the Adcom Preamp.  The AC Enhancer is very start forward.

The A-03 had the Record Phono and Source set to Aux setting.  I can provide pics of the back of the AR A-03 and NAD if needed.  

So do the ML's plug into the NAD and then connect the NAD to the AR then to the Preamp???

So not where to go from here?! So what I thought might be a fun project to connect with my dad is appearing not so easy.  Anyone that can shed some light on all this???

Thank you in advance