your radio, C43, is capable of an AUX input. it is not prewired, but there is factory harness with the pins and the plugs that need to be inserted into the back of the radio. with specific length of factory harness you are limited to final location of the 3.5mm jack, factory prescribes the glove compartment area. if you need to run it further, you can built your own harness, under $5, or settle for factory harness for $30-70, depending on vendor.

the site sponsor, the ECS, has them...