Eric,
I did not use the cig. Lighter for power - in all but the very lowest power equipment, the recommendation is always to get power straight from the battery, because the cig lighter sockets can almost never handle the current demanded by a transmitting radio. I do talk about how I ran the power on my blog, so you may want to check that out.
As for the antenna on the trunk, it was a bit involved, but not bad. You have to remove all the plastic trim parts (handles, latch covers, etc.) and then you can pop out the plastic tabs and drop the trunk lid liner down. From there, you just need to find your locations and drill. On the fusions there is a sort of beam down the middle of the trunk lid that you have to work inside of if you want your antenna centered. I do talk about how I dealt with that on my blog too.
www.n3vem.com
Good luck on your project! The fusion is a great car!
I apologize for any bad grammar or spelling in my response here-I'm on my phone and not at a proper keyboard at the moment.
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