A wiring harness for use with an emergency vehicle. The wiring harness can be an independent wiring harness added after the vehicle has been manufactured or it can be included in the original equipment manufacturer's wiring harness. The wiring harness permits the addition of emergency vehicle equipment,...http://www.google.co.uk/patents/US6674182?utm_source=gb-gplus-sharePatent US6674182 - Emergency vehicle wiring harness and control system
