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MG MGB Technical - Fitting CD Tuner to 1974 MGB Roadster

Any ideas on how to wire in a Kenwood 4090 CD Tuner to a 1974 mgb roadster and the best location for an antenna. At the moment there is a four pin plug which I presume was for a radio with four wires, red, green, black and grey going to the plug, do these corrospond to ignition, battery, earth and speaker wires in a modern ISO connector.

M Green

You will have to dig out a voltage tester - I don't think anyone is willing to guess at what wiring is currently in your car. Most of us know the things tha P.O.'s do to these cars, and know that those wires may not be part of the original loom.
Jeff.

Jeff Schlemmer

For power I run a new rec wire from the battery up. I would not want 200 amps going threw a stock mg wire but thats just me as for the others its easy. Test for ignition acc. power, then the speakers are easy to fiqure out and thats about it.
Ross

I have a pretty nice little system in my 73 MGB. I use a really nice clarion CD Tuner..Stereo's are standard size and they pretty much all fit the same though the wiring/wiring colours are different. As noted above use a mulitmeter to figure out the wiring. With mine though, I just re-wired the deck up to the IGN circuits and the +12V from the fuse box in the engine bay and made my own ground myself rather then go through the existing MG circuits. 4" two way speakers in both doors and 6X9" 3 ways mounted behind the seat in custom boxes mounted throught the carpet and screwed into the battery box cover. SOunds great unless you're going 70+ MPH..all you hear is wind and beautiful humming engine sounds unless you really crank the volume up.
EJW Willis

Because my GT is a loud little beast (V8 stuffed in), I decided to pull out the stereo altogether since it had to be painfully cranked up to hear it clearly. What amazes me is the weight thus saved ... between speakers, amps, subwoofer, CD changer and wiring, there must have been 80-100 pounds of gear in there. I think the car's happier without all that stuff. (Note that until recently, the Ferrari family refused to install radios in their cars, except for the 2+2s that had autoboxes -- the aural entertainment was the exhaust pipe.)
Terrence

I was planning to install a radio/cd or cassette player in my 72 MGB this spring. I have been told that the unit can't be more than 6 inches deep, that limits many of the units available off the shelve which are 6.5 inches and larger. Any ideas for a brand or model of radio/CD or cassette player that will fit into this car? I am not that particular about sound quantity, since I know with the "hood" down and cruising on a back road with a large bore exhaust the sound of music will be difficult to hear. It is really for those days with the top up or when I am sitting in traffic.
Joe

Joe,

You may be right about the depth problem in most new stereos but they do sell 'extension' rings at most stereo shops to extend and cover the 1/2" or so of exposed stereo.

My Alpine has one and looks fine with it. Its installed in a '72 center console. The extenson was given to me free by a stereo shop just for the asking.

Thank goodness stereos are still pretty easy to install by yourself.

Luis
Luis

This thread was discussed between 06/04/2002 and 09/04/2002

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