Thanks for all the comments, Overdrive came with the most sense to my situation! Yes my garage is not heated but is fully insulated where i can hang around and do some work/maintenance on my other cars,.ie: my wifes and son..
The DME from my experience in previous years took about a week or so on some settings to be re-learned.. On the radio code, it does not need one on an 04' 986S!
Oh ! the things that we worry about on the colder and snowy months, but come Spring it feels like i always have a brand new TOY !
Cheers everyone...
thx
t2