A:AnswerThe best call is to go to a car audio shop they will install that for you, better experience people and if the sound or anything is not right they will fix it at not extra cost,
A:AnswerYes, they do all the above.
As for "how much," depends on which stereo you want, what backup camera, etc. It would be impossible to price without knowing.
The only definitive, would be the cost of labor.
A:AnswerBestBuy can do that for you. BUT, they cut corners, throw away important warranty info and cannot explain (or will not) how the unit works. Thank goodness for youtube.com, i found out how to properly use my radio.
A:AnswerThey are all extremely well trained. Yes, they can install the (backup) camera. Yes, they can install the steering wheel control components.
I believe the extra charge for backup camera is about $99.00.