![]() In a modern car, there’s a bunch of ways to control volume. In an old car, that knob directly controls the signal from an amplifier to adjust what you hear. Think about what happens when you turn the volume up on the radio. It’s relatively easy to program and you could probably reuse code from any number of projects on GitHub to get started. For a few bucks, you can buy an Arduino-type device that has CANbus hardware built-in that can join the conversation. Most modern cars use a networking standard called CANbus to communicate information across the various computer modules in the car. It’s actually reasonably simple theses days. The trunk latch itself is going to be big and bulky, but you could use that if you want your hidden compartment to resist attempts to pry it open.įor example, to disable the seatbelt chime you turn the key to accessory, turn steering wheel to the right, pump the breaks three times, then start the car. Use a trunk latch release mechanism to spring the latch. Attach wires to those locations and run them along with some power to your circuitry which you will keep inside your hidden compartment. Find the wiring diagrams to see where they can be tapped at convenient places, like under the dashboard as opposed to someplace under a door panel. Once you detect the required conditions you trigger a solenoid switch through appropriate circuit isolation to spring a latch.įor more details look at the fuse and relay documentation for your car to see which controls you can use. If you can’t design electronic circuits you could use something like an Arduino that can be programmed, although it seems like overkill. So you detect when both the left turn signal is on at the same time you are rolling down the right side window. You would probably add some simple circuitry so that the door to your secret compartment doesn’t spring open whenever you make a left turn. Any of your lights, windows, door locks, ac/heat blower motor might be tapped to trigger some other device. ![]() Cars use several devices that turn on and off by simply switching voltage to the device on and off. They promised! That’s what I want to know. The cocktail type drinking culture was still going strong back then and the savings must have been worth it to some people. It was used to bring low cost liquor from adjoining states into Pennsylvania where all liquor had to be purchased from a State Store. I remember going back further into the dim past of the 70s seeing a car that had a secret trunk compartment that was sort of a false back on the rear seats. Very likely the release mechanism is just hidden under the dashboard somewhere instead of making a false control mechanism that is exposed. So it doesn’t take much to disguise a secret compartment that won’t have to stand up to a more serious intrusive search. If the police do have reasonable cause to believe something is hidden in the car they could get a warrant and tear it apart like was done in the French Connection. The police don’t start trying the controls looking for hidden compartments for a routine traffic stop. I don’t remember many details, I think this happened in the 80s, but it’s clear the police didn’t have trouble uncovering the secret compartment once they suspected it was there. Once the police suspected this vehicle was involved the police stopped it following another robbery and examined the car closely enough to find the hidden compartment the jewelry was stashed in. I remember home burglary jewelry thieves in New York being caught after their high end car was spotted in the vicinity of several thefts, and even stopped at least once, but no sign of any stolen jewelry in the car. The murder weapon was hidden thusly, and Lennie seemed to think such oddball combinations were common, I would have never thought of anything like that. * L&O, Everybody Loves Raimondos was on last night. If people appropriate switches from things like the radio or heater to make a secret stash box lock, does the radio and the heater still work? How does one make a secret combination from different systems? The radio and the heater and whatnot aren’t interconnected. Is this realistic, or is this just another TV contrivance with no basis in reality (like silenced revolvers) that everyone just uses over and over? More TV BS “facts”? I have no trouble with the concept of secret compartments, it’s the access that bugs me. “Push the radio, the heater, and the cigarette lighter” *, and the compartment pops open. Maybe inside the passenger airbag compartment, maybe under the floor, and it is opened by some combination of regular controls. I’ve seen this repeatedly on cop shows: the perp has a secret stash compartment in the car.
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