Sorry, but there is nothing yet known as a replacement for aftermarket stereo.

Perhaps your query is too complicated? For example there are alternatives to the following parts of your query:

aftermarket (43)
stereo (45)

Maybe some reasonable answers will be found next time you come.

Your alternative for aftermarket stereo is not listed? Suggest!
Speaking about aftermarket stereo, one probably shouldn't forget about steering wheel controls.

Other search terms related to aftermarket stereo and their ratings are:

★★★★★ steering wheel controls
★★ onstar
ford sync
microsoft sync
factory steering wheel controls
factory amp
You have in mind a companion for aftermarket stereo and it is not yet here? Propose!

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aftermarket stereo