(S (S (BASENP (JJ Many)) (VP (VBP are) (VP (VBG being) (VP (VP (VBN built) (PP (IN with) (NP (BASENP (JJ auxiliary) (NNS jacks)) (PP (IN for) (BASENP (DT the) (NN stock) (NN radio)))))) (COMMA ,) (S (VP (VBG allowing) (S (BASENP (DT the) (NN driver)) (VP (TO to) (VP (ADVP (RB easily)) (VP (VP (VP (VB connect) (BASENP (DT any) (ADJP (NN audio) (VBG playing)) (NN device))) (PP (TO to) (NP (BASENP (DT the) (NN car) (POS 's)) (BASENP (NN sound) (NN system))))) (PP (IN with) (BASENP (DT a) (JJ simple) (ADJP (NN 3.5) (NN mm)) (NN plug))))))))))))) (PERIOD .))