inputs.text: one best head units available audiophile sound - bought mine local crutchfield outlet store lower price install unit vintage mercedes car amplifier used added pioneer powered subwoofer since one would fitthe inbuilt crossovers flexibility tune sound amazing well worth spending time even including timedelay front back surprisingly effective pulled infinity front speakers replaced muchbettersuited alpines left rear infinity speakers greatsounding systemive gone back forth ponying digital soundmapping capability decided not bother honestly dont think sound better already without replacing speakers suchive good service fm tuner even mountains near much better range blaupunkt unit well cd player really useful friends like share music easily cd still way convenient sounds fine doesnt skipsome ipod navigation slow distracting organize music playlists first much easier manage none head units better anyway maybe apple needs team alpine design interface new head unit touchscreen no buttons ill buy onebe aware alpines idax305 modern ipod navigation setup functionally still slow due implementation clunky interface plus preouts 2v opposed 4v outs cda117 definitely audiophiles choice reasonablypriced yet still modern headunit make sure know youre install make sure correct cables spend time setting controls eq unit gets compliments passengers time sounds great not fatiguing allhighly recommendedhighly recommended