Yeah, I have one under the CRT brand that I imported from the Neatherlands. It apparently has the best feature set amongst all the radios that share this same design. For less than $100 shipped to my door it should make a good CB.
http://www.crtfrance.com/en/mobiles-radio/640-crt-2000.html...
I had a Prius and did this around a dozen times with heat or AC and zero issues. Biggest downside is, unless you're really small framed, you won't fit in the back so sleeping in the front seats is the only option.
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