
Given the following passage

"Some independent stereo manufacturers including JVC, Pioneer, Kenwood, Alpine, Sony, and Harman Kardon also have iPod-specific integration solutions. Alternative connection methods include adapter kits (that use the cassette deck or the CD changer port), audio input jacks, and FM transmitters such as the iTrip—although personal FM transmitters are illegal in some countries. Many car manufacturers have added audio input jacks as standard.",

answer the following question. Note that the answer is present within the text.

Question: What is the combination of old and new technology? 

adapter kits (that use the cassette deck or the CD changer port)
