Don't know. You may be the test case.
To start with, there are at least 2 EVIC's for the 3.7 Liberty: 1) Homelink with TPMS (tire Pressure Monitoring System). and 2) Homelink/no TPMS (and possibly, 3) no Homelink). You should get the current part numbers from the dealer AND also for the CRD. See if they match.
IF so, you know you should be able do an installation from any current Liberty. This gives you a back up option if some other EVIC (say an '03 off an GC) fails to perform.
So far we know, a Pre-'04 Liberty and '04 and earlier GC EVIC will not display Ambient Temp on an '04 and newer Liberty**; that all '03 and newer EVICs lose the Instaneous MPG feature; but some '02 and newer models get TPMS capability. Existing literature and postings give you this info, so you just need to know the part # of your perspective purchase to see what you get. I lucked into (rare) both the Instant MPG and TPMS, but get my Ambient Temp from a Gentex auto dimming mirror.
** An OTIS from '04 and newer Ram or Durango will, but you lose the EVIC advantage of programability and some of the "warning" features. There's always a trade off!
As to expense, there are at least 7 EVIC/OTIS consoles currently on e-bay that could be used in the Liberty. You should be able ro get something to use as a test unit for $30 to $40. You can upgrade later and sell the old one when you're finished. It took me 6 months and 3 units to get the one I finally wanted, but enjoyed the benefits of the others in the meantime! Just a thought.
If you do it, keep us posted!