A vehicle comprising: • on-board electrical loads including one or more of the following: headlights, power windows, electric actuators/motors, airbags, electrically-controlled electric/mechanical/hydraulic/pneumatic devices; and • an on-board control system operable to control said on-board electrical loads; wherein said on-board control system comprises: • user-operable control members to generate commands for said electrical loads; • an interconnection device; • a second wireless communication system operable to connect said control members to said interconnection device to transmit user-generated commands to said interconnection device; • a first wireless communication system operable to connect said interconnection device to said electrical loads to operate said electrical loads in response to user-generated commands received by said interconnection device; wherein said first wireless communication system has a different communication protocol and/or data format from said second wireless communication system, a lower transmission speed than said second wireless communication system, and is configured to permit simultaneous activation of a higher number of communication channels than said second wireless communication system; wherein said second wireless communication system comprises: • a second transceiver module provided on said main interconnection device; and • a fourth transceiver module provided on each control member and operable to communicate with said second transceiver module; wherein said first wireless communication system comprises: • a first transceiver module provided on said main interconnection device; and • a third transceiver module provided on each electrical load and operable to communicate with said first transceiver module; and wherein said interconnection device comprises: • interface means operable to interface said first and second wireless communication systems (4, 6) to convert the communication protocol and data format of said second wireless communication system into the communication protocol and data format of said first wireless communication system, and vice versa. • on-board electrical loads including one or more of the following: headlights, power windows, electric actuators/motors, airbags, electrically-controlled electric/mechanical/hydraulic/pneumatic devices; and • an on-board control system operable to control said on-board electrical loads; • user-operable control members to generate commands for said electrical loads; • an interconnection device; • a second wireless communication system operable to connect said control members to said interconnection device to transmit user-generated commands to said interconnection device; • a first wireless communication system operable to connect said interconnection device to said electrical loads to operate said electrical loads in response to user-generated commands received by said interconnection device; • a second transceiver module provided on said main interconnection device; and • a fourth transceiver module provided on each control member and operable to communicate with said second transceiver module; • a first transceiver module provided on said main interconnection device; and • a third transceiver module provided on each electrical load and operable to communicate with said first transceiver module; and • interface means operable to interface said first and second wireless communication systems (4, 6) to convert the communication protocol and data format of said second wireless communication system into the communication protocol and data format of said first wireless communication system, and vice versa.