Hi

How long will my battery last with the radio on while the engine is not running? My car has DSP if that matter. (my batt is fairly new)

Im thinking of going to see a Drive In movie! Also how to turn my lights on the tailgate (bit that lift up) off? On a warm day, we'd rather sit in the trunk, munching junk food and have the upper tail gate lift up!

Thanks

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13.6 Street tire Gtst
11.6 Street tire R32 GTR