If you were told $150 for "entire" upgrade & charged $379 when all is said-n-done = yes you've been bent over. Now if the dealer said $150 and then you faded off into hearing "Charlie Brown's Teacher" talking during the rest of the quote - then the dealer's in the right. I say go back & discuss w/dealership service mgr & relay your issues/concerns. They're the ones you need to focus attn toward...