Here is an '03 EVIC for sale on eBay in case anyone is interested. Don't mind the fact he says there is no temp sensor. I have an '03 and it has the capability. You might just have to get it from an auto parts store.
'03 EVIC
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2003 Renegade 4X4 5-Speed, Bright Silver *TRADED for 2013 Wrangler*
PIAA 520 Auxiliary Lights
Garmin GPSMAP 76S
DynoMax Ultra Flow SS Muffler
Amsoil Ea "Absolute Efficiency" Air FilterNokian Vatiiva 235/70/R16 Tires
Pixeldzn's "RENEGADE" decals
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