I just finished the installation in my 83 300cd and will begin to document it here...Basically it includes an Alpine Head unit with XM built in and a CD. In order to be able to control all the speakers in the car I am using a Nakamichi EC200H crossover for the front and a Nak EC200 and EC200H for the rear which are mounted in the glovebox. These are "old school" units from the 80's but have 24 db slopes I believe and are very clean..The speakers in the car are two pair of Boston Acoustic 5.5 Pro. They are very clean and handle all the power I give them. Mounted in the trunk are 4 ADS PH15 "also old school" amplifiers which are all bridged for 12 X 110 watts RMS and drive every speaker in the vehicle with its own amplifier. I am using 2 12" JL Audio dual voice coil subs for the custom sub box in the trunk. Considering that the install took around 100 hours (with Dynamat) I am glad to be done...I spent a week of my vacation finishing it and other features include all custom made preamp cables (8 hours) and resoldering of both cruise control and heater controller and now both work. I will provide some pictures as soon as I figure out how to put them on this forum.

Attached Thumbnails

       

__________________
83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/showthread.php?t=125099