I have a 1989 BMW 525i. I used to drive a 1987 Jeep Cherokee with a bangin' system until I ran it into a median. I still have the system and I want to put it in my Bimmer but I am told from friends that it is going to be mad hard. Is it something I could do myself or will I need to take it somewhere to get it done?? WHat extra parts would I need if I can do it myself??
