good (this repo hasn't found it yet) You'll need this and a 12v battery fitting in a well hidden place of your choice and of course with your choice of cable length. Noisy! It probably works just as well in cars. Definitely open around 2am, even a few times!
π Zento Deals 12V Single Trumpet Air Horn + Compressor β Powerful Loud 150db for Truck, Boat, SUV, Train
9 Review
Car compressor Aggressor AGR-75 orange
14 Review
π FARBIN 12V Mini Air Horn, Loud Car Horn with Chrome Zinc Dual Trumpet, Compressor Wire Harness and Button for Trucks, Cars, SUVs, RVs, Motorcycles, Off Road - Mini Version with Button
9 Review
π FIAMM 72102 Enhanced Freeway Blaster HIGH Note Horn
9 Review
Get Ultimate Towing Stability With CURT TruTrack Weight Distribution Hitch & Sway Control - Up To 10K Capacity, 2-Inch Shank & 2-5/16-Inch Ball - In Sleek Black Design
30 Review
4WD ORCISH Recovery Traction Boards Tracks Tire Ladder For Sand Snow Mud - Set Of 2 (2Nd Gen Bag + Mounting Pins, Black)
39 Review
Cordiant Road Runner 195/65 R15 91H summer
24 Review
SuperJump Trampoline with SuperJump 8ft (244 cm) net and ladder
29 Review