Remember the days when car radios were an optional extra, electric windows were totally upmarket, outside mirrors weren't adjustable, oil had to be changed and points adjusted every 3000 miles, and light bulbs blew without you realising? Oh, and you could get perhaps 200 miles from a full tank. There is an upside to today's added complications: cars cost less to run and maintain, and are on the whole more reliable and last longer. In fact, I would venture to suggest that having to splash out when something does go wrong is such a rare thing, that on balance it still works out cheaper.

Regarding the OP's radio, it's possible that two versions were made, physically the same but one having more features and costing more. In fact identical, except that the budget model had the extra features blocked by software - until the right code was entered. Such things have happened.