Expedition question

[ncscram]

I ordered an EDGE CS from an internet vender that stated it would work on a 2007 Expedition. After talking to an EDGE Tech and discovering this site, I found that in fact it will not work on the 07. I was wondering if you could plug in the tuner and be able to read things like trans temp, oil temp, basically use all the gauge functions without trying to download any tunes. Just curious if anyone has tried this or if it will cause damage to the PCM by pluging it in. I haven't even pulled the thing out of the box yet because I was planning on sending it back, but I am thinking about holding on to it in hopes of an update coming out that will enable it to work on the 07 and up Expeditions. Any thoughts would be greatly appreciated.