I have recently purchased a factory radio with cd & tape to replace my original radio with only a tape. Are there any installation instructions available online? I'd rather not pay for installation if I can do it myself.

Hey what year 850 do you have and is there anything wrong with the old head unit you are replacing. I have a 93 and the antenna connection is bad w/in the unit, so I have to slap the side to pick up a station. I also have a cd changer I've mounted and added to the system that integrates with the 93 headunit (alpine). If we have the same year and same model radio, I would like to purchase your old one assuming there's nothing wrong with it. Please let me know, my email is deuce241@hotmail.com. Thanks

There are 2 pop out tabs on the front (left and right side) of your existing unit. Press these thin rectangular tabs in with something like a small standard screwdriver and the tabs will pop out. After the tabs are exposed, pull on the tabs straight out and the unit will simply slide out. The new unit will just slide in and then press the tabs back in on the new unit. You will need the security code on the new unit to get it working. You should be good to go in less than 5 minutes.

Thank you, that worked great!