While I tend to agree with Joel that the Bose is several generation old, it does sound awfully good when working which is why I kept it. Before having my repaired the shop did speak with Bose about upgrading to a newer system and it would be complex and pricey. While I didn't understand much of what was said there seemed to have been a issue with the speakers not be compatible with newer equipment, no idea why but the estimate was something like 5-7K to replace with much of the cost be labor to rewire. Even though this was an insurance job, I couldn't justify that much work.
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I didn't even consider replacing the Bose with another Bose. IMHO Bose hardware is "snob appeal" audio that commands a very high price because of its reputation and "cachet". Because the Bose receiver was mounted in such a horrible location we didn't even attempt to reuse the space. That area now houses my WiFiRanger and Wilson amplifier with everything powered from the set of 12V outlets I installed on the side of the dash.
Our audio system is a Sony soundbar unit which consists of the bar itself mounted below the front overhead cabinets with its subwoofer/control console inside the old TV cabinet. A Logitech Harmony 890 remote with RF extended runs everything including those components hidden in cabinets. We didn't bother with rear speakers and find that the simulated Dolby 5.1 sound is just fine. Today there are soundbars available that can control wireless rear speakers so you don't have to worry about running wires if you insist on having actual rear speakers.
One of the secondary pluses of getting rid of the Bose is that the subwoofer under the sofa virtually precludes replacing the sofa by a standard unit since the sofa clearly was designed around the speaker. By removing it we could install an Ekornes loveseat which is far more comfortable than the sofa ever was.
I'm not saying that what we did is for everyone, but from a cost perspective the Sony audio system was ~$400 which is not much more than the repair cost of the Bose. We ended up with an audio system with HDMI compatibility which makes connecting other modern devices much easier.
As for the car radio, ours still had a cassette deck and we haven't owned a cassette tape in 10 years. We spent <$200 to replace it with an inexpensive Alpine which has iPad controls and an auxiliary input jack. We used to use the jack for XM radio, but now it is used mostly for the cell phone playing Pandora music while we drive. A radio without an input jack these days is another dinosaur that we couldn't have lived with for long.
