An aftermarket nosebox from Phillips Industries helps alleviate wire pinching and pull-out on trailers with supplemental systems such as trailer tracking and weigh systems. The I-Box, initially offered as a new trailer option in 2008, can now be purchased as a retrofit product.

The I-Box has one-third more working room inside the box and has enough room to store and keep dry trailer schematics, bills of material and other documents. It can also house Phillips' Permalogic controller.