Keeping radio on long term

[chrisp]

Is there a way to keep the radio on the LR4 without the engine being on for say a couple hours? It's a pretty unique use case, but I've been doing to a drive-in with my car and it tends to time out after 30 min or so, which is a bit annoying.
I can't imagine there's that much drain with just the stereo on so seems like the car may be a bit conservative when it comes to power consumption.

Any thoughts here?
Would second battery help?

 

[Rover Range]

The radio does consume a lot of power. Hence the auto shut down.

Best to get a portable boom box.

 

[BigBriDogGuy]

Hey @chrisp check this out. I feel your pain.

Drive-in Movie Theater (Nightmare on Elm Street)

I had this fantasy. As with most fantasies, it turned into a nightmare. It involved taking my "new to me" 2011 LR4 to the drive-in and treating the family (wife, girls, and dog) to a fun-filled night of viewing outdoor movies snuggled up with blankets and pillows in the back of the vehicle...

www.landroverworld.org