Top won't go down on 1992 BMW 325is

I recently put in a new radio and every since I can't put the top of my 325i Converible down also the tachometer stopped working at the same time I'm thinking I might have disconected some key wires what wires do what and how can I fix these problems thanks

by in Ashland, OR on January 19, 2011
1 answer
ANSWER by on January 21, 2011
There is a web site that will have the wiring diagrams for your BMW: http://bit.ly/mitchell_repair_manuals_online