Today, armed with a new aux port-equipped testing vehicle, we’re reviewing a collection of auxiliary audio solutions from Kensington, Monster Cable, and DLO, with plans to expand our coverage of accessories in this product category in the future. From Kensington, we look at the LiquidAUX ($80) and LiquidAUX Deluxe ($100) for iPhone and iPod, while we also check out Monster’s iCarCharger 200 for iPod and iPhone ($50), and DLO’s TransDock…