A memory interface system can include a memory controller configured to operate at a first operating frequency. The sheet may include a top flexible tab for extending onto part of the roof of the vehicle and a bottom flexible tab for either extending onto the hood or for insertion into the cowl vent at the bottom of the windshield. At least one of the housing elements has a localized reduction in the heat conductivity such that the dissipation of heat in the at least one housing element is reduced. The trunk selection parameter is conveyed to a connection gateway, which routes the call on one of a plurality of voice trunks.