Moving audio gear in sub zero temperatures


Need to transport my audio gear (turntable. Tube amp, speakers etc on an overnight trip in freezing weather. If they are in a dry vehicle that is parked outside for a night, can it damage anything?
bajaed
I found this:
Samsung Plasma TVs can be stored at temperatures ranging from -4 °F to 113 °F (-20 °C to 45 °C). Storing a Samsung Plasma TV in an environment with temperatures outside this temperature range can damage the TV, even if it's not in use.
And this:
Cold temperatures will do no damage to plasma TVs until they dip below freezing. The cold itself doesn't hurt a TV, which is why it can be transported and stored in freezing temperatures. But if you take a cold TV indoors and immediately turn it on, its electronic components can suffer irreversible damage.
Oh, and don’t slip on the ice and drop it.
Properly boxed up the inside temperature is going to be higher than ambient. 
I have a bunch of stuff that was submerged in liquid nitrogen for a week. So no, I don't think overnight in a car is a problem.
OK Think about what you're putting your beloved equipment in to transport it.. I assure you that, the transportation device your using, has about 10 time the electronics and at least 10 X again in leading edge tech.. You're worried about your gear.. I'd worry about the transportation device FIRST.. LOL  Cold weather and gear.. Dream come true.. Not gonna hurt a thing.

I've seen equipment bounce from one side of Canada to the other in the dead of winter.. Just transported in a regular cargo trailer.. The tractor pulling the trailer is what I'd be worried about.. LOL..

A desert crossing.. YES I'd be worried... Plastic warping all kinds of things happen in the desert.. 

I've fixed equipment in both.. I'll take the cold, when it comes to equipment breaking.. You might get cold.. But the equipment doesn't really care. Keep it dry, and don't let it rattle all the way THERE....
Lots of moving blankets, ay! Tuck your babies in...

Regards