I have a 98 323 convertible that I'd like to swap out the original in-dash cassette unit with an after market cd-mp3 unit. Reading these boards makes it sound like it's easy enough, but being a little unsure, I called around to get estimates on installation from a "professional". One guy when told I had a BMW, said that "oh those are pain" because they come with a stock amp that would need to be rewired so that would be an additional $80 on top of the standard $50 for the HU. Is there anything to this or is he just trying to rip me off?
Also, I'd like to get a unit with an aux input so I can plug in an MP3 player. I was told that I have to the run aux cable from the back of the unit. Where do I run the cable and how easy is that? Thanks for any input.