I can sympathize. No modern offering looks like something I'd want in my '90s car, let alone one from two decades prior. I was recently given an older single DIN Alpine head unit, and decided to use it as a stopgap until I figure out what I want to compromise. Well the head unit looks off, obviously. But the Metra kit (for the 7xx/9xx cars only) is absolutely hideous. I guess they were accounting for some DIN options which are deeper than what the car can fit. Not the case with my radio, but I get why they had to do it. So I'll stick with this a while, because I have other priorities to address with both the car and home, and limited time and money. But eventually I might just go all in with a full DIN (requires some custom fabrication and relay relocation in my case). This will probably look better than what I have now (as it would be flush with the console, if not period appropriate), and give me navigation in-dash. But part of me thinks of going with an amplifier with bluetooth, and putting the broken OE head unit back in. Would be simple and clean, except I'd require a phone mount somewhere to be able to control the audio - so in the end not so great after all.

Sorry to post without any solution, but I felt like commiserating. I hope you find a compromise you can live with.