Just recently purchased my sonata, no navigation. I have everything I need speakers, amps, subs, I just don't know if I should keep the factory head unit a get a sound processor, like JL Audio Clean Sweep. Or Replace with an after market dvd/navigation in-dash. Will I lose all functions in the steering wheel. Vol, channel, bluetooth.
That's why I'm planning on keeping my factory radio when I eventually do my install.Yes you will lose volume control, channel up/down, input, etc. Your bluetooth should still work for your phone you just won't be able to stream music via BT unless you buy a head unit with BT.