Anybody seen this before?

on the seat belt interlocking thing, if you put something on the passenger side that was 40 pounds or more and didn't fasten seatbelt , the car wouldn't start, they had a reset button umder the hood that you had to press to reset the seatbelt module under the dash, believe me , i have a 74 duster, and finally replaced all the wiring under dash with a 1971 duster wiring, the modules under dash are $160 on ebay used, and if you look at pins going to the gauge cluster, they are double wires of each color going to each pin, so if you simply cut the module out, you lost 11 different functions,dome light,dash lights,parking lights, turn signals, cigarette lighter, radio, and i can't remember the rest, took me 4 months to try and rewire around module, finally found a 71 wiring harness and replaced under dash,underhood , and all tail light wiring, no problem since, ma mopar realized what a mistake this was and dropped it on the 75s and 76s