They often use the same wiring harness for every car. But your seats may only be connected to some wires ,such as seat belt sensors. Your seats might not have the necessary heating wires built into in their upholstery.
Even if they are heated seats you need to be very careful wiring them up as they draw a lot of amps. If the incorrect switches, additional wiring, fuse etc is used ,or they are wired wrongly things could melt and be a fire hazard.
Car makers dont always publish suitable free wiring diagrammes . Professional auto electricians usually pay annual fees to access such data.
You may not still be able to get the parts new from Honda. The best bet might be to get used parts from a car breaker. Even complete seats if necessary.
