Cool idea and application! Maybe once @geiser figures out how to connect an upsized horn to the 12V battery, the same connection approach can be used for your front-end camera.ever since i started to drive (and park) insight since last september, i began to develope this fear of smashing the front fender into a concrete parking block. I was parking my car about 2 feet away from the front curb. My other car is jeep wrangler so i have no problem when i park that car.
I finally installed a remote camera, and now i can see.
the usage of this battery is temporary test case. The remote switch draws .005a at standby and .1a with camera on, so i will need to recharge my small lipo battery every 2 weeks or so. I will need to look into a better way to tap into the 12v insight battery for more permanent solution.
It's too bad that the parking sensors don't have a wider (hi/lo) reading range, rather than being for 'straight ahead' objects. I've been backing into MANY more parking spots lately (or intentionally looking for spots without parking blocks) to avoid the risk of front fender grinding...